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Finding the Fourth Proportional to 611,722.60, 915,834.30 and 611,722.60

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Solution

The fourth proportional to 611,722.60, 915,834.30 and 611,722.60 is: 915,834.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,722.60 : 915,834.30 = 611,722.60 : x
  2. Step 2: Convert to fraction form
    611,722.60/915,834.30 = 611,722.60/x
  3. Step 3: Cross multiply
    611,722.60x = 915,834.30 × 611,722.60
  4. Step 4: Simplify right side
    611,722.60x = 560,236,539,165.18
  5. Step 5: Solve for x
    x = 560,236,539,165.18/611,722.60
  6. Step 6: Final answer
    x = 915,834.30

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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.