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Finding the Fourth Proportional to 521,705.70, 732,487.50 and 521,705.70

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Solution

The fourth proportional to 521,705.70, 732,487.50 and 521,705.70 is: 732,487.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,705.70 : 732,487.50 = 521,705.70 : x
  2. Step 2: Convert to fraction form
    521,705.70/732,487.50 = 521,705.70/x
  3. Step 3: Cross multiply
    521,705.70x = 732,487.50 × 521,705.70
  4. Step 4: Simplify right side
    521,705.70x = 382,142,903,928.75
  5. Step 5: Solve for x
    x = 382,142,903,928.75/521,705.70
  6. Step 6: Final answer
    x = 732,487.50

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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.