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Finding the Fourth Proportional to 487,085.04, 730,318.01 and 427,233.69

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Solution

The fourth proportional to 487,085.04, 730,318.01 and 427,233.69 is: 640,579.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,085.04 : 730,318.01 = 427,233.69 : x
  2. Step 2: Convert to fraction form
    487,085.04/730,318.01 = 427,233.69/x
  3. Step 3: Cross multiply
    487,085.04x = 730,318.01 × 427,233.69
  4. Step 4: Simplify right side
    487,085.04x = 312,016,456,149.59
  5. Step 5: Solve for x
    x = 312,016,456,149.59/487,085.04
  6. Step 6: Final answer
    x = 640,579.02

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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.