Home / 1,332,019.08-1,838,158.92-728,407.08

Finding the Fourth Proportional to 1,332,019.08, 1,838,158.92 and 728,407.08

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Solution

The fourth proportional to 1,332,019.08, 1,838,158.92 and 728,407.08 is: 1,005,186.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,019.08 : 1,838,158.92 = 728,407.08 : x
  2. Step 2: Convert to fraction form
    1,332,019.08/1,838,158.92 = 728,407.08/x
  3. Step 3: Cross multiply
    1,332,019.08x = 1,838,158.92 × 728,407.08
  4. Step 4: Simplify right side
    1,332,019.08x = 1,338,927,971,493.15
  5. Step 5: Solve for x
    x = 1,338,927,971,493.15/1,332,019.08
  6. Step 6: Final answer
    x = 1,005,186.78

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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.