Home / 791,335.20-1,187,002.80-371,431.20

Finding the Fourth Proportional to 791,335.20, 1,187,002.80 and 371,431.20

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Solution

The fourth proportional to 791,335.20, 1,187,002.80 and 371,431.20 is: 557,146.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,335.20 : 1,187,002.80 = 371,431.20 : x
  2. Step 2: Convert to fraction form
    791,335.20/1,187,002.80 = 371,431.20/x
  3. Step 3: Cross multiply
    791,335.20x = 1,187,002.80 × 371,431.20
  4. Step 4: Simplify right side
    791,335.20x = 440,889,874,407.36
  5. Step 5: Solve for x
    x = 440,889,874,407.36/791,335.20
  6. Step 6: Final answer
    x = 557,146.80

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1.5x scale

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.