Home / 1,120,683.68-1,681,036.96-321,963.20

Finding the Fourth Proportional to 1,120,683.68, 1,681,036.96 and 321,963.20

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Solution

The fourth proportional to 1,120,683.68, 1,681,036.96 and 321,963.20 is: 482,948.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,683.68 : 1,681,036.96 = 321,963.20 : x
  2. Step 2: Convert to fraction form
    1,120,683.68/1,681,036.96 = 321,963.20/x
  3. Step 3: Cross multiply
    1,120,683.68x = 1,681,036.96 × 321,963.20
  4. Step 4: Simplify right side
    1,120,683.68x = 541,232,038,959.87
  5. Step 5: Solve for x
    x = 541,232,038,959.87/1,120,683.68
  6. Step 6: Final answer
    x = 482,948.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.