Home / 1,260,416.41-1,739,395.38-687,456.58

Finding the Fourth Proportional to 1,260,416.41, 1,739,395.38 and 687,456.58

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Solution

The fourth proportional to 1,260,416.41, 1,739,395.38 and 687,456.58 is: 948,701.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,416.41 : 1,739,395.38 = 687,456.58 : x
  2. Step 2: Convert to fraction form
    1,260,416.41/1,739,395.38 = 687,456.58/x
  3. Step 3: Cross multiply
    1,260,416.41x = 1,739,395.38 × 687,456.58
  4. Step 4: Simplify right side
    1,260,416.41x = 1,195,758,799,202.60
  5. Step 5: Solve for x
    x = 1,195,758,799,202.60/1,260,416.41
  6. Step 6: Final answer
    x = 948,701.39

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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.