Home / 1,187,979.40-1,780,656.90-655,882.30

Finding the Fourth Proportional to 1,187,979.40, 1,780,656.90 and 655,882.30

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Solution

The fourth proportional to 1,187,979.40, 1,780,656.90 and 655,882.30 is: 983,098.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,979.40 : 1,780,656.90 = 655,882.30 : x
  2. Step 2: Convert to fraction form
    1,187,979.40/1,780,656.90 = 655,882.30/x
  3. Step 3: Cross multiply
    1,187,979.40x = 1,780,656.90 × 655,882.30
  4. Step 4: Simplify right side
    1,187,979.40x = 1,167,901,343,082.87
  5. Step 5: Solve for x
    x = 1,167,901,343,082.87/1,187,979.40
  6. Step 6: Final answer
    x = 983,098.99

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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.