Home / 657,992.20-986,988.30-284,015.20

Finding the Fourth Proportional to 657,992.20, 986,988.30 and 284,015.20

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Solution

The fourth proportional to 657,992.20, 986,988.30 and 284,015.20 is: 426,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,992.20 : 986,988.30 = 284,015.20 : x
  2. Step 2: Convert to fraction form
    657,992.20/986,988.30 = 284,015.20/x
  3. Step 3: Cross multiply
    657,992.20x = 986,988.30 × 284,015.20
  4. Step 4: Simplify right side
    657,992.20x = 280,319,679,422.16
  5. Step 5: Solve for x
    x = 280,319,679,422.16/657,992.20
  6. Step 6: Final answer
    x = 426,022.80

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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.