Home / 696,831.20-1,045,902.90-431,110.70

Finding the Fourth Proportional to 696,831.20, 1,045,902.90 and 431,110.70

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Solution

The fourth proportional to 696,831.20, 1,045,902.90 and 431,110.70 is: 647,071.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,831.20 : 1,045,902.90 = 431,110.70 : x
  2. Step 2: Convert to fraction form
    696,831.20/1,045,902.90 = 431,110.70/x
  3. Step 3: Cross multiply
    696,831.20x = 1,045,902.90 × 431,110.70
  4. Step 4: Simplify right side
    696,831.20x = 450,899,931,351.03
  5. Step 5: Solve for x
    x = 450,899,931,351.03/696,831.20
  6. Step 6: Final answer
    x = 647,071.96

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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.