Home / 459,007.40-688,511.10-370,433.90

Finding the Fourth Proportional to 459,007.40, 688,511.10 and 370,433.90

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Solution

The fourth proportional to 459,007.40, 688,511.10 and 370,433.90 is: 555,650.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,007.40 : 688,511.10 = 370,433.90 : x
  2. Step 2: Convert to fraction form
    459,007.40/688,511.10 = 370,433.90/x
  3. Step 3: Cross multiply
    459,007.40x = 688,511.10 × 370,433.90
  4. Step 4: Simplify right side
    459,007.40x = 255,047,851,966.29
  5. Step 5: Solve for x
    x = 255,047,851,966.29/459,007.40
  6. Step 6: Final answer
    x = 555,650.85

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Double scale
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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.