Home / 1,238,304.40-1,857,715.80-396,941.20

Finding the Fourth Proportional to 1,238,304.40, 1,857,715.80 and 396,941.20

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Solution

The fourth proportional to 1,238,304.40, 1,857,715.80 and 396,941.20 is: 595,494.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,304.40 : 1,857,715.80 = 396,941.20 : x
  2. Step 2: Convert to fraction form
    1,238,304.40/1,857,715.80 = 396,941.20/x
  3. Step 3: Cross multiply
    1,238,304.40x = 1,857,715.80 × 396,941.20
  4. Step 4: Simplify right side
    1,238,304.40x = 737,403,938,910.96
  5. Step 5: Solve for x
    x = 737,403,938,910.96/1,238,304.40
  6. Step 6: Final answer
    x = 595,494.89

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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.