Home / 985,912.10-1,478,868.15-354,743.90

Finding the Fourth Proportional to 985,912.10, 1,478,868.15 and 354,743.90

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Solution

The fourth proportional to 985,912.10, 1,478,868.15 and 354,743.90 is: 532,115.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,912.10 : 1,478,868.15 = 354,743.90 : x
  2. Step 2: Convert to fraction form
    985,912.10/1,478,868.15 = 354,743.90/x
  3. Step 3: Cross multiply
    985,912.10x = 1,478,868.15 × 354,743.90
  4. Step 4: Simplify right side
    985,912.10x = 524,619,455,116.79
  5. Step 5: Solve for x
    x = 524,619,455,116.79/985,912.10
  6. Step 6: Final answer
    x = 532,115.85

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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.