Home / 1,131,748.39-1,561,681.78-648,284.70

Finding the Fourth Proportional to 1,131,748.39, 1,561,681.78 and 648,284.70

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Solution

The fourth proportional to 1,131,748.39, 1,561,681.78 and 648,284.70 is: 894,557.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,748.39 : 1,561,681.78 = 648,284.70 : x
  2. Step 2: Convert to fraction form
    1,131,748.39/1,561,681.78 = 648,284.70/x
  3. Step 3: Cross multiply
    1,131,748.39x = 1,561,681.78 × 648,284.70
  4. Step 4: Simplify right side
    1,131,748.39x = 1,012,414,404,242.77
  5. Step 5: Solve for x
    x = 1,012,414,404,242.77/1,131,748.39
  6. Step 6: Final answer
    x = 894,557.85

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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.