Home / 1,109,425.41-1,531,195.04-644,207.18

Finding the Fourth Proportional to 1,109,425.41, 1,531,195.04 and 644,207.18

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Solution

The fourth proportional to 1,109,425.41, 1,531,195.04 and 644,207.18 is: 889,115.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,425.41 : 1,531,195.04 = 644,207.18 : x
  2. Step 2: Convert to fraction form
    1,109,425.41/1,531,195.04 = 644,207.18/x
  3. Step 3: Cross multiply
    1,109,425.41x = 1,531,195.04 × 644,207.18
  4. Step 4: Simplify right side
    1,109,425.41x = 986,406,832,702.93
  5. Step 5: Solve for x
    x = 986,406,832,702.93/1,109,425.41
  6. Step 6: Final answer
    x = 889,115.05

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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.