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Finding the Fourth Proportional to 679,543.62, 937,781.76 and 373,632.54

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Solution

The fourth proportional to 679,543.62, 937,781.76 and 373,632.54 is: 515,619.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,543.62 : 937,781.76 = 373,632.54 : x
  2. Step 2: Convert to fraction form
    679,543.62/937,781.76 = 373,632.54/x
  3. Step 3: Cross multiply
    679,543.62x = 937,781.76 × 373,632.54
  4. Step 4: Simplify right side
    679,543.62x = 350,385,780,954.47
  5. Step 5: Solve for x
    x = 350,385,780,954.47/679,543.62
  6. Step 6: Final answer
    x = 515,619.26

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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.