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Finding the Fourth Proportional to 515,274.81, 710,834.38 and 343,272.72

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Solution

The fourth proportional to 515,274.81, 710,834.38 and 343,272.72 is: 473,553.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,274.81 : 710,834.38 = 343,272.72 : x
  2. Step 2: Convert to fraction form
    515,274.81/710,834.38 = 343,272.72/x
  3. Step 3: Cross multiply
    515,274.81x = 710,834.38 × 343,272.72
  4. Step 4: Simplify right side
    515,274.81x = 244,010,051,092.11
  5. Step 5: Solve for x
    x = 244,010,051,092.11/515,274.81
  6. Step 6: Final answer
    x = 473,553.23

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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.