Home / 1,098,892.65-1,515,988.80-663,066.91

Finding the Fourth Proportional to 1,098,892.65, 1,515,988.80 and 663,066.91

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Solution

The fourth proportional to 1,098,892.65, 1,515,988.80 and 663,066.91 is: 914,740.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,892.65 : 1,515,988.80 = 663,066.91 : x
  2. Step 2: Convert to fraction form
    1,098,892.65/1,515,988.80 = 663,066.91/x
  3. Step 3: Cross multiply
    1,098,892.65x = 1,515,988.80 × 663,066.91
  4. Step 4: Simplify right side
    1,098,892.65x = 1,005,202,005,895.27
  5. Step 5: Solve for x
    x = 1,005,202,005,895.27/1,098,892.65
  6. Step 6: Final answer
    x = 914,740.86

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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.