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Finding the Fourth Proportional to 709,829.00, 979,414.31 and 451,612.70

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Solution

The fourth proportional to 709,829.00, 979,414.31 and 451,612.70 is: 623,130.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,829.00 : 979,414.31 = 451,612.70 : x
  2. Step 2: Convert to fraction form
    709,829.00/979,414.31 = 451,612.70/x
  3. Step 3: Cross multiply
    709,829.00x = 979,414.31 × 451,612.70
  4. Step 4: Simplify right side
    709,829.00x = 442,315,937,189.70
  5. Step 5: Solve for x
    x = 442,315,937,189.70/709,829.00
  6. Step 6: Final answer
    x = 623,130.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.