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Finding the Fourth Proportional to 502,567.20, 753,850.80 and 478,072.80

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Solution

The fourth proportional to 502,567.20, 753,850.80 and 478,072.80 is: 717,109.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,567.20 : 753,850.80 = 478,072.80 : x
  2. Step 2: Convert to fraction form
    502,567.20/753,850.80 = 478,072.80/x
  3. Step 3: Cross multiply
    502,567.20x = 753,850.80 × 478,072.80
  4. Step 4: Simplify right side
    502,567.20x = 360,395,562,738.24
  5. Step 5: Solve for x
    x = 360,395,562,738.24/502,567.20
  6. Step 6: Final answer
    x = 717,109.20

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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.