Home / 426,553.40-639,522.90-239,622.20

Finding the Fourth Proportional to 426,553.40, 639,522.90 and 239,622.20

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Solution

The fourth proportional to 426,553.40, 639,522.90 and 239,622.20 is: 359,260.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,553.40 : 639,522.90 = 239,622.20 : x
  2. Step 2: Convert to fraction form
    426,553.40/639,522.90 = 239,622.20/x
  3. Step 3: Cross multiply
    426,553.40x = 639,522.90 × 239,622.20
  4. Step 4: Simplify right side
    426,553.40x = 153,243,884,248.38
  5. Step 5: Solve for x
    x = 153,243,884,248.38/426,553.40
  6. Step 6: Final answer
    x = 359,260.73

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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.