Home / 727,871.52-1,087,961.28-632,343.36

Finding the Fourth Proportional to 727,871.52, 1,087,961.28 and 632,343.36

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Solution

The fourth proportional to 727,871.52, 1,087,961.28 and 632,343.36 is: 945,173.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,871.52 : 1,087,961.28 = 632,343.36 : x
  2. Step 2: Convert to fraction form
    727,871.52/1,087,961.28 = 632,343.36/x
  3. Step 3: Cross multiply
    727,871.52x = 1,087,961.28 × 632,343.36
  4. Step 4: Simplify right side
    727,871.52x = 687,965,091,345.10
  5. Step 5: Solve for x
    x = 687,965,091,345.10/727,871.52
  6. Step 6: Final answer
    x = 945,173.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.