Home / 890,848.20-1,336,445.10-385,408.20

Finding the Fourth Proportional to 890,848.20, 1,336,445.10 and 385,408.20

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Solution

The fourth proportional to 890,848.20, 1,336,445.10 and 385,408.20 is: 578,187.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,848.20 : 1,336,445.10 = 385,408.20 : x
  2. Step 2: Convert to fraction form
    890,848.20/1,336,445.10 = 385,408.20/x
  3. Step 3: Cross multiply
    890,848.20x = 1,336,445.10 × 385,408.20
  4. Step 4: Simplify right side
    890,848.20x = 515,076,900,389.82
  5. Step 5: Solve for x
    x = 515,076,900,389.82/890,848.20
  6. Step 6: Final answer
    x = 578,187.06

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Double scale
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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.