Home / 712,834.80-1,068,917.40-413,400.48

Finding the Fourth Proportional to 712,834.80, 1,068,917.40 and 413,400.48

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Solution

The fourth proportional to 712,834.80, 1,068,917.40 and 413,400.48 is: 619,906.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,834.80 : 1,068,917.40 = 413,400.48 : x
  2. Step 2: Convert to fraction form
    712,834.80/1,068,917.40 = 413,400.48/x
  3. Step 3: Cross multiply
    712,834.80x = 1,068,917.40 × 413,400.48
  4. Step 4: Simplify right side
    712,834.80x = 441,890,966,240.35
  5. Step 5: Solve for x
    x = 441,890,966,240.35/712,834.80
  6. Step 6: Final answer
    x = 619,906.56

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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.