Home / 1,161,080-1,602,294.24-644,835.20

Finding the Fourth Proportional to 1,161,080, 1,602,294.24 and 644,835.20

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Solution

The fourth proportional to 1,161,080, 1,602,294.24 and 644,835.20 is: 889,874.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,080 : 1,602,294.24 = 644,835.20 : x
  2. Step 2: Convert to fraction form
    1,161,080/1,602,294.24 = 644,835.20/x
  3. Step 3: Cross multiply
    1,161,080x = 1,602,294.24 × 644,835.20
  4. Step 4: Simplify right side
    1,161,080x = 1,033,215,726,709.25
  5. Step 5: Solve for x
    x = 1,033,215,726,709.25/1,161,080
  6. Step 6: Final answer
    x = 889,874.71

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Double scale
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Similar ratio
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1.5x scale

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.