Home / 656,712.04-985,123.96-207,312.70

Finding the Fourth Proportional to 656,712.04, 985,123.96 and 207,312.70

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Solution

The fourth proportional to 656,712.04, 985,123.96 and 207,312.70 is: 310,986.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,712.04 : 985,123.96 = 207,312.70 : x
  2. Step 2: Convert to fraction form
    656,712.04/985,123.96 = 207,312.70/x
  3. Step 3: Cross multiply
    656,712.04x = 985,123.96 × 207,312.70
  4. Step 4: Simplify right side
    656,712.04x = 204,228,707,982.29
  5. Step 5: Solve for x
    x = 204,228,707,982.29/656,712.04
  6. Step 6: Final answer
    x = 310,986.70

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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.