Home / 459,002.10-688,503.15-340,904.10

Finding the Fourth Proportional to 459,002.10, 688,503.15 and 340,904.10

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Solution

The fourth proportional to 459,002.10, 688,503.15 and 340,904.10 is: 511,356.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,002.10 : 688,503.15 = 340,904.10 : x
  2. Step 2: Convert to fraction form
    459,002.10/688,503.15 = 340,904.10/x
  3. Step 3: Cross multiply
    459,002.10x = 688,503.15 × 340,904.10
  4. Step 4: Simplify right side
    459,002.10x = 234,713,546,697.92
  5. Step 5: Solve for x
    x = 234,713,546,697.92/459,002.10
  6. Step 6: Final answer
    x = 511,356.15

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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.