Home / 656,890.70-985,724.85-432,898.70

Finding the Fourth Proportional to 656,890.70, 985,724.85 and 432,898.70

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Solution

The fourth proportional to 656,890.70, 985,724.85 and 432,898.70 is: 649,604.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,890.70 : 985,724.85 = 432,898.70 : x
  2. Step 2: Convert to fraction form
    656,890.70/985,724.85 = 432,898.70/x
  3. Step 3: Cross multiply
    656,890.70x = 985,724.85 × 432,898.70
  4. Step 4: Simplify right side
    656,890.70x = 426,719,006,122.70
  5. Step 5: Solve for x
    x = 426,719,006,122.70/656,890.70
  6. Step 6: Final answer
    x = 649,604.27

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1.5x scale

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.