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Finding the Fourth Proportional to 572,420.20, 858,630.30 and 507,466.30

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Solution

The fourth proportional to 572,420.20, 858,630.30 and 507,466.30 is: 761,199.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,420.20 : 858,630.30 = 507,466.30 : x
  2. Step 2: Convert to fraction form
    572,420.20/858,630.30 = 507,466.30/x
  3. Step 3: Cross multiply
    572,420.20x = 858,630.30 × 507,466.30
  4. Step 4: Simplify right side
    572,420.20x = 435,725,941,408.89
  5. Step 5: Solve for x
    x = 435,725,941,408.89/572,420.20
  6. Step 6: Final answer
    x = 761,199.45

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Half scale
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Double scale
Find fourth proportional to 572,421.20, 858,631.80 and 507,467.30
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.