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Finding the Fourth Proportional to 543,006.60, 749,158.53 and 313,557.36

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Solution

The fourth proportional to 543,006.60, 749,158.53 and 313,557.36 is: 432,599.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,006.60 : 749,158.53 = 313,557.36 : x
  2. Step 2: Convert to fraction form
    543,006.60/749,158.53 = 313,557.36/x
  3. Step 3: Cross multiply
    543,006.60x = 749,158.53 × 313,557.36
  4. Step 4: Simplify right side
    543,006.60x = 234,904,170,888.28
  5. Step 5: Solve for x
    x = 234,904,170,888.28/543,006.60
  6. Step 6: Final answer
    x = 432,599.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.