Home / 694,554.30-1,041,831.45-428,615.10

Finding the Fourth Proportional to 694,554.30, 1,041,831.45 and 428,615.10

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Solution

The fourth proportional to 694,554.30, 1,041,831.45 and 428,615.10 is: 642,922.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,554.30 : 1,041,831.45 = 428,615.10 : x
  2. Step 2: Convert to fraction form
    694,554.30/1,041,831.45 = 428,615.10/x
  3. Step 3: Cross multiply
    694,554.30x = 1,041,831.45 × 428,615.10
  4. Step 4: Simplify right side
    694,554.30x = 446,544,691,124.90
  5. Step 5: Solve for x
    x = 446,544,691,124.90/694,554.30
  6. Step 6: Final answer
    x = 642,922.65

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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.