Home / 497,721.40-746,582.10-459,230.20

Finding the Fourth Proportional to 497,721.40, 746,582.10 and 459,230.20

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Solution

The fourth proportional to 497,721.40, 746,582.10 and 459,230.20 is: 688,845.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,721.40 : 746,582.10 = 459,230.20 : x
  2. Step 2: Convert to fraction form
    497,721.40/746,582.10 = 459,230.20/x
  3. Step 3: Cross multiply
    497,721.40x = 746,582.10 × 459,230.20
  4. Step 4: Simplify right side
    497,721.40x = 342,853,047,099.42
  5. Step 5: Solve for x
    x = 342,853,047,099.42/497,721.40
  6. Step 6: Final answer
    x = 688,845.30

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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.