Home / 724,042.80-1,087,813.80-647,060.40

Finding the Fourth Proportional to 724,042.80, 1,087,813.80 and 647,060.40

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Solution

The fourth proportional to 724,042.80, 1,087,813.80 and 647,060.40 is: 972,154.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,042.80 : 1,087,813.80 = 647,060.40 : x
  2. Step 2: Convert to fraction form
    724,042.80/1,087,813.80 = 647,060.40/x
  3. Step 3: Cross multiply
    724,042.80x = 1,087,813.80 × 647,060.40
  4. Step 4: Simplify right side
    724,042.80x = 703,881,232,553.52
  5. Step 5: Solve for x
    x = 703,881,232,553.52/724,042.80
  6. Step 6: Final answer
    x = 972,154.18

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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.