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Finding the Fourth Proportional to 515,270.66, 772,532.30 and 346,372.06

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Solution

The fourth proportional to 515,270.66, 772,532.30 and 346,372.06 is: 519,306.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,270.66 : 772,532.30 = 346,372.06 : x
  2. Step 2: Convert to fraction form
    515,270.66/772,532.30 = 346,372.06/x
  3. Step 3: Cross multiply
    515,270.66x = 772,532.30 × 346,372.06
  4. Step 4: Simplify right side
    515,270.66x = 267,583,604,167.54
  5. Step 5: Solve for x
    x = 267,583,604,167.54/515,270.66
  6. Step 6: Final answer
    x = 519,306.89

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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.