Home / 1,332,138.25-1,838,394.53-728,526.25

Finding the Fourth Proportional to 1,332,138.25, 1,838,394.53 and 728,526.25

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Solution

The fourth proportional to 1,332,138.25, 1,838,394.53 and 728,526.25 is: 1,005,390.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,138.25 : 1,838,394.53 = 728,526.25 : x
  2. Step 2: Convert to fraction form
    1,332,138.25/1,838,394.53 = 728,526.25/x
  3. Step 3: Cross multiply
    1,332,138.25x = 1,838,394.53 × 728,526.25
  4. Step 4: Simplify right side
    1,332,138.25x = 1,339,318,672,961.41
  5. Step 5: Solve for x
    x = 1,339,318,672,961.41/1,332,138.25
  6. Step 6: Final answer
    x = 1,005,390.15

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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.