Home / 1,372,708.80-2,058,103.20-811,454.40

Finding the Fourth Proportional to 1,372,708.80, 2,058,103.20 and 811,454.40

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Solution

The fourth proportional to 1,372,708.80, 2,058,103.20 and 811,454.40 is: 1,216,614.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372,708.80 : 2,058,103.20 = 811,454.40 : x
  2. Step 2: Convert to fraction form
    1,372,708.80/2,058,103.20 = 811,454.40/x
  3. Step 3: Cross multiply
    1,372,708.80x = 2,058,103.20 × 811,454.40
  4. Step 4: Simplify right side
    1,372,708.80x = 1,670,056,897,294.08
  5. Step 5: Solve for x
    x = 1,670,056,897,294.08/1,372,708.80
  6. Step 6: Final answer
    x = 1,216,614.11

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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.