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Finding the Fourth Proportional to 520,056.90, 729,654.30 and 520,056.90

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Solution

The fourth proportional to 520,056.90, 729,654.30 and 520,056.90 is: 729,654.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,056.90 : 729,654.30 = 520,056.90 : x
  2. Step 2: Convert to fraction form
    520,056.90/729,654.30 = 520,056.90/x
  3. Step 3: Cross multiply
    520,056.90x = 729,654.30 × 520,056.90
  4. Step 4: Simplify right side
    520,056.90x = 379,461,753,329.67
  5. Step 5: Solve for x
    x = 379,461,753,329.67/520,056.90
  6. Step 6: Final answer
    x = 729,654.30

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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.