Home / 1,332,030.96-1,838,165.40-728,406

Finding the Fourth Proportional to 1,332,030.96, 1,838,165.40 and 728,406

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Solution

The fourth proportional to 1,332,030.96, 1,838,165.40 and 728,406 is: 1,005,179.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,030.96 : 1,838,165.40 = 728,406 : x
  2. Step 2: Convert to fraction form
    1,332,030.96/1,838,165.40 = 728,406/x
  3. Step 3: Cross multiply
    1,332,030.96x = 1,838,165.40 × 728,406
  4. Step 4: Simplify right side
    1,332,030.96x = 1,338,930,706,352.40
  5. Step 5: Solve for x
    x = 1,338,930,706,352.40/1,332,030.96
  6. Step 6: Final answer
    x = 1,005,179.87

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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.