Home / 1,217,290.45-1,679,559.01-787,052.88

Finding the Fourth Proportional to 1,217,290.45, 1,679,559.01 and 787,052.88

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Solution

The fourth proportional to 1,217,290.45, 1,679,559.01 and 787,052.88 is: 1,085,937.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,290.45 : 1,679,559.01 = 787,052.88 : x
  2. Step 2: Convert to fraction form
    1,217,290.45/1,679,559.01 = 787,052.88/x
  3. Step 3: Cross multiply
    1,217,290.45x = 1,679,559.01 × 787,052.88
  4. Step 4: Simplify right side
    1,217,290.45x = 1,321,901,755,950.45
  5. Step 5: Solve for x
    x = 1,321,901,755,950.45/1,217,290.45
  6. Step 6: Final answer
    x = 1,085,937.84

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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.