Home / 589,386.24-813,358.08-321,131.52

Finding the Fourth Proportional to 589,386.24, 813,358.08 and 321,131.52

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Solution

The fourth proportional to 589,386.24, 813,358.08 and 321,131.52 is: 443,164.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,386.24 : 813,358.08 = 321,131.52 : x
  2. Step 2: Convert to fraction form
    589,386.24/813,358.08 = 321,131.52/x
  3. Step 3: Cross multiply
    589,386.24x = 813,358.08 × 321,131.52
  4. Step 4: Simplify right side
    589,386.24x = 261,194,916,534.68
  5. Step 5: Solve for x
    x = 261,194,916,534.68/589,386.24
  6. Step 6: Final answer
    x = 443,164.26

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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.