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Finding the Fourth Proportional to 487,419.40, 730,817.62 and 234,195.98

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Solution

The fourth proportional to 487,419.40, 730,817.62 and 234,195.98 is: 351,144.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,419.40 : 730,817.62 = 234,195.98 : x
  2. Step 2: Convert to fraction form
    487,419.40/730,817.62 = 234,195.98/x
  3. Step 3: Cross multiply
    487,419.40x = 730,817.62 × 234,195.98
  4. Step 4: Simplify right side
    487,419.40x = 171,154,548,717.17
  5. Step 5: Solve for x
    x = 171,154,548,717.17/487,419.40
  6. Step 6: Final answer
    x = 351,144.31

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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.