Home / 724,655.60-1,091,323.28-660,013.28

Finding the Fourth Proportional to 724,655.60, 1,091,323.28 and 660,013.28

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Solution

The fourth proportional to 724,655.60, 1,091,323.28 and 660,013.28 is: 993,972.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,655.60 : 1,091,323.28 = 660,013.28 : x
  2. Step 2: Convert to fraction form
    724,655.60/1,091,323.28 = 660,013.28/x
  3. Step 3: Cross multiply
    724,655.60x = 1,091,323.28 × 660,013.28
  4. Step 4: Simplify right side
    724,655.60x = 720,287,857,573.16
  5. Step 5: Solve for x
    x = 720,287,857,573.16/724,655.60
  6. Step 6: Final answer
    x = 993,972.66

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.