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Finding the Fourth Proportional to 617,657.43, 926,645.87 and 361,706.18

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Solution

The fourth proportional to 617,657.43, 926,645.87 and 361,706.18 is: 542,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,657.43 : 926,645.87 = 361,706.18 : x
  2. Step 2: Convert to fraction form
    617,657.43/926,645.87 = 361,706.18/x
  3. Step 3: Cross multiply
    617,657.43x = 926,645.87 × 361,706.18
  4. Step 4: Simplify right side
    617,657.43x = 335,173,534,121.51
  5. Step 5: Solve for x
    x = 335,173,534,121.51/617,657.43
  6. Step 6: Final answer
    x = 542,652.80

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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.