Home / 487,845.12-731,347.11-188,535.72

Finding the Fourth Proportional to 487,845.12, 731,347.11 and 188,535.72

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Solution

The fourth proportional to 487,845.12, 731,347.11 and 188,535.72 is: 282,641.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,845.12 : 731,347.11 = 188,535.72 : x
  2. Step 2: Convert to fraction form
    487,845.12/731,347.11 = 188,535.72/x
  3. Step 3: Cross multiply
    487,845.12x = 731,347.11 × 188,535.72
  4. Step 4: Simplify right side
    487,845.12x = 137,885,053,953.77
  5. Step 5: Solve for x
    x = 137,885,053,953.77/487,845.12
  6. Step 6: Final answer
    x = 282,641.04

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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.