Home / 956,734.20-1,438,211.70-678,180.60

Finding the Fourth Proportional to 956,734.20, 1,438,211.70 and 678,180.60

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Solution

The fourth proportional to 956,734.20, 1,438,211.70 and 678,180.60 is: 1,019,475.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    956,734.20 : 1,438,211.70 = 678,180.60 : x
  2. Step 2: Convert to fraction form
    956,734.20/1,438,211.70 = 678,180.60/x
  3. Step 3: Cross multiply
    956,734.20x = 1,438,211.70 × 678,180.60
  4. Step 4: Simplify right side
    956,734.20x = 975,367,273,633.02
  5. Step 5: Solve for x
    x = 975,367,273,633.02/956,734.20
  6. Step 6: Final answer
    x = 1,019,475.71

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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.