Home / 1,131,679.10-1,565,829.48-986,787

Finding the Fourth Proportional to 1,131,679.10, 1,565,829.48 and 986,787

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Solution

The fourth proportional to 1,131,679.10, 1,565,829.48 and 986,787 is: 1,365,351.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,679.10 : 1,565,829.48 = 986,787 : x
  2. Step 2: Convert to fraction form
    1,131,679.10/1,565,829.48 = 986,787/x
  3. Step 3: Cross multiply
    1,131,679.10x = 1,565,829.48 × 986,787
  4. Step 4: Simplify right side
    1,131,679.10x = 1,545,140,175,080.76
  5. Step 5: Solve for x
    x = 1,545,140,175,080.76/1,131,679.10
  6. Step 6: Final answer
    x = 1,365,351.87

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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.