Home / 942,489.12-1,413,198.08-643,331.82

Finding the Fourth Proportional to 942,489.12, 1,413,198.08 and 643,331.82

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Solution

The fourth proportional to 942,489.12, 1,413,198.08 and 643,331.82 is: 964,632.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,489.12 : 1,413,198.08 = 643,331.82 : x
  2. Step 2: Convert to fraction form
    942,489.12/1,413,198.08 = 643,331.82/x
  3. Step 3: Cross multiply
    942,489.12x = 1,413,198.08 × 643,331.82
  4. Step 4: Simplify right side
    942,489.12x = 909,155,292,826.91
  5. Step 5: Solve for x
    x = 909,155,292,826.91/942,489.12
  6. Step 6: Final answer
    x = 964,632.14

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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.