Home / 589,987.02-814,180.59-321,715.02

Finding the Fourth Proportional to 589,987.02, 814,180.59 and 321,715.02

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Solution

The fourth proportional to 589,987.02, 814,180.59 and 321,715.02 is: 443,965.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,987.02 : 814,180.59 = 321,715.02 : x
  2. Step 2: Convert to fraction form
    589,987.02/814,180.59 = 321,715.02/x
  3. Step 3: Cross multiply
    589,987.02x = 814,180.59 × 321,715.02
  4. Step 4: Simplify right side
    589,987.02x = 261,934,124,795.46
  5. Step 5: Solve for x
    x = 261,934,124,795.46/589,987.02
  6. Step 6: Final answer
    x = 443,965.91

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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.