Home / 477,355.10-715,921.76-140,305.59

Finding the Fourth Proportional to 477,355.10, 715,921.76 and 140,305.59

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Solution

The fourth proportional to 477,355.10, 715,921.76 and 140,305.59 is: 210,425.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,355.10 : 715,921.76 = 140,305.59 : x
  2. Step 2: Convert to fraction form
    477,355.10/715,921.76 = 140,305.59/x
  3. Step 3: Cross multiply
    477,355.10x = 715,921.76 × 140,305.59
  4. Step 4: Simplify right side
    477,355.10x = 100,447,825,281.40
  5. Step 5: Solve for x
    x = 100,447,825,281.40/477,355.10
  6. Step 6: Final answer
    x = 210,425.79

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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.