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Finding the Fourth Proportional to 521,693.90, 731,946.10 and 521,693.90

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Solution

The fourth proportional to 521,693.90, 731,946.10 and 521,693.90 is: 731,946.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,693.90 : 731,946.10 = 521,693.90 : x
  2. Step 2: Convert to fraction form
    521,693.90/731,946.10 = 521,693.90/x
  3. Step 3: Cross multiply
    521,693.90x = 731,946.10 × 521,693.90
  4. Step 4: Simplify right side
    521,693.90x = 381,851,815,498.79
  5. Step 5: Solve for x
    x = 381,851,815,498.79/521,693.90
  6. Step 6: Final answer
    x = 731,946.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.