Home / 3,191,149.76-4,786,688-916,729.92

Finding the Fourth Proportional to 3,191,149.76, 4,786,688 and 916,729.92

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Solution

The fourth proportional to 3,191,149.76, 4,786,688 and 916,729.92 is: 1,375,084.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191,149.76 : 4,786,688 = 916,729.92 : x
  2. Step 2: Convert to fraction form
    3,191,149.76/4,786,688 = 916,729.92/x
  3. Step 3: Cross multiply
    3,191,149.76x = 4,786,688 × 916,729.92
  4. Step 4: Simplify right side
    3,191,149.76x = 4,388,100,107,304.96
  5. Step 5: Solve for x
    x = 4,388,100,107,304.96/3,191,149.76
  6. Step 6: Final answer
    x = 1,375,084.35

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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.