Home / 1,188,827.28-1,782,066.42-761,145.66

Finding the Fourth Proportional to 1,188,827.28, 1,782,066.42 and 761,145.66

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Solution

The fourth proportional to 1,188,827.28, 1,782,066.42 and 761,145.66 is: 1,140,966.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,827.28 : 1,782,066.42 = 761,145.66 : x
  2. Step 2: Convert to fraction form
    1,188,827.28/1,782,066.42 = 761,145.66/x
  3. Step 3: Cross multiply
    1,188,827.28x = 1,782,066.42 × 761,145.66
  4. Step 4: Simplify right side
    1,188,827.28x = 1,356,412,121,414.74
  5. Step 5: Solve for x
    x = 1,356,412,121,414.74/1,188,827.28
  6. Step 6: Final answer
    x = 1,140,966.52

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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.