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Finding the Fourth Proportional to 657,986.20, 986,979.30 and 588,002.20

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Solution

The fourth proportional to 657,986.20, 986,979.30 and 588,002.20 is: 882,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,986.20 : 986,979.30 = 588,002.20 : x
  2. Step 2: Convert to fraction form
    657,986.20/986,979.30 = 588,002.20/x
  3. Step 3: Cross multiply
    657,986.20x = 986,979.30 × 588,002.20
  4. Step 4: Simplify right side
    657,986.20x = 580,345,999,754.46
  5. Step 5: Solve for x
    x = 580,345,999,754.46/657,986.20
  6. Step 6: Final answer
    x = 882,003.30

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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.