Home / 653,118.20-979,687.67-248,316.57

Finding the Fourth Proportional to 653,118.20, 979,687.67 and 248,316.57

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Solution

The fourth proportional to 653,118.20, 979,687.67 and 248,316.57 is: 372,478.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,118.20 : 979,687.67 = 248,316.57 : x
  2. Step 2: Convert to fraction form
    653,118.20/979,687.67 = 248,316.57/x
  3. Step 3: Cross multiply
    653,118.20x = 979,687.67 × 248,316.57
  4. Step 4: Simplify right side
    653,118.20x = 243,272,680,644.11
  5. Step 5: Solve for x
    x = 243,272,680,644.11/653,118.20
  6. Step 6: Final answer
    x = 372,478.80

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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.