Home / 527,478.54-791,342.28-172,491.18

Finding the Fourth Proportional to 527,478.54, 791,342.28 and 172,491.18

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Solution

The fourth proportional to 527,478.54, 791,342.28 and 172,491.18 is: 258,777.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,478.54 : 791,342.28 = 172,491.18 : x
  2. Step 2: Convert to fraction form
    527,478.54/791,342.28 = 172,491.18/x
  3. Step 3: Cross multiply
    527,478.54x = 791,342.28 × 172,491.18
  4. Step 4: Simplify right side
    527,478.54x = 136,499,563,661.09
  5. Step 5: Solve for x
    x = 136,499,563,661.09/527,478.54
  6. Step 6: Final answer
    x = 258,777.47

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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.