Home / 724,407.72-1,087,748.88-613,541.40

Finding the Fourth Proportional to 724,407.72, 1,087,748.88 and 613,541.40

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Solution

The fourth proportional to 724,407.72, 1,087,748.88 and 613,541.40 is: 921,275.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,407.72 : 1,087,748.88 = 613,541.40 : x
  2. Step 2: Convert to fraction form
    724,407.72/1,087,748.88 = 613,541.40/x
  3. Step 3: Cross multiply
    724,407.72x = 1,087,748.88 × 613,541.40
  4. Step 4: Simplify right side
    724,407.72x = 667,378,970,683.63
  5. Step 5: Solve for x
    x = 667,378,970,683.63/724,407.72
  6. Step 6: Final answer
    x = 921,275.34

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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.