Home / 872,403.12-1,203,979.68-532,935.36

Finding the Fourth Proportional to 872,403.12, 1,203,979.68 and 532,935.36

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Solution

The fourth proportional to 872,403.12, 1,203,979.68 and 532,935.36 is: 735,489.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,403.12 : 1,203,979.68 = 532,935.36 : x
  2. Step 2: Convert to fraction form
    872,403.12/1,203,979.68 = 532,935.36/x
  3. Step 3: Cross multiply
    872,403.12x = 1,203,979.68 × 532,935.36
  4. Step 4: Simplify right side
    872,403.12x = 641,643,344,193.49
  5. Step 5: Solve for x
    x = 641,643,344,193.49/872,403.12
  6. Step 6: Final answer
    x = 735,489.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.