Home / 459,719.40-688,023.90-403,732.20

Finding the Fourth Proportional to 459,719.40, 688,023.90 and 403,732.20

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Solution

The fourth proportional to 459,719.40, 688,023.90 and 403,732.20 is: 604,232.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,719.40 : 688,023.90 = 403,732.20 : x
  2. Step 2: Convert to fraction form
    459,719.40/688,023.90 = 403,732.20/x
  3. Step 3: Cross multiply
    459,719.40x = 688,023.90 × 403,732.20
  4. Step 4: Simplify right side
    459,719.40x = 277,777,402,799.58
  5. Step 5: Solve for x
    x = 277,777,402,799.58/459,719.40
  6. Step 6: Final answer
    x = 604,232.50

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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.