Home / 894,289.64-1,341,470.94-287,139.56

Finding the Fourth Proportional to 894,289.64, 1,341,470.94 and 287,139.56

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Solution

The fourth proportional to 894,289.64, 1,341,470.94 and 287,139.56 is: 430,721.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    894,289.64 : 1,341,470.94 = 287,139.56 : x
  2. Step 2: Convert to fraction form
    894,289.64/1,341,470.94 = 287,139.56/x
  3. Step 3: Cross multiply
    894,289.64x = 1,341,470.94 × 287,139.56
  4. Step 4: Simplify right side
    894,289.64x = 385,189,375,464.39
  5. Step 5: Solve for x
    x = 385,189,375,464.39/894,289.64
  6. Step 6: Final answer
    x = 430,721.05

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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.