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Finding the Fourth Proportional to 543,280.32, 749,689.31 and 301,543.88

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Solution

The fourth proportional to 543,280.32, 749,689.31 and 301,543.88 is: 416,109.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,280.32 : 749,689.31 = 301,543.88 : x
  2. Step 2: Convert to fraction form
    543,280.32/749,689.31 = 301,543.88/x
  3. Step 3: Cross multiply
    543,280.32x = 749,689.31 × 301,543.88
  4. Step 4: Simplify right side
    543,280.32x = 226,064,220,337.34
  5. Step 5: Solve for x
    x = 226,064,220,337.34/543,280.32
  6. Step 6: Final answer
    x = 416,109.72

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