Home / 791,248.20-1,091,920.98-428,681.13

Finding the Fourth Proportional to 791,248.20, 1,091,920.98 and 428,681.13

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Solution

The fourth proportional to 791,248.20, 1,091,920.98 and 428,681.13 is: 591,579.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,248.20 : 1,091,920.98 = 428,681.13 : x
  2. Step 2: Convert to fraction form
    791,248.20/1,091,920.98 = 428,681.13/x
  3. Step 3: Cross multiply
    791,248.20x = 1,091,920.98 × 428,681.13
  4. Step 4: Simplify right side
    791,248.20x = 468,085,919,577.11
  5. Step 5: Solve for x
    x = 468,085,919,577.11/791,248.20
  6. Step 6: Final answer
    x = 591,579.13

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1.5x scale

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.