Home / 1,086,420.27-1,499,445.53-627,452.36

Finding the Fourth Proportional to 1,086,420.27, 1,499,445.53 and 627,452.36

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Solution

The fourth proportional to 1,086,420.27, 1,499,445.53 and 627,452.36 is: 865,991.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,420.27 : 1,499,445.53 = 627,452.36 : x
  2. Step 2: Convert to fraction form
    1,086,420.27/1,499,445.53 = 627,452.36/x
  3. Step 3: Cross multiply
    1,086,420.27x = 1,499,445.53 × 627,452.36
  4. Step 4: Simplify right side
    1,086,420.27x = 940,830,625,855.46
  5. Step 5: Solve for x
    x = 940,830,625,855.46/1,086,420.27
  6. Step 6: Final answer
    x = 865,991.41

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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.