Home / 847,861.20-1,170,048.24-465,912.72

Finding the Fourth Proportional to 847,861.20, 1,170,048.24 and 465,912.72

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Solution

The fourth proportional to 847,861.20, 1,170,048.24 and 465,912.72 is: 642,959.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,861.20 : 1,170,048.24 = 465,912.72 : x
  2. Step 2: Convert to fraction form
    847,861.20/1,170,048.24 = 465,912.72/x
  3. Step 3: Cross multiply
    847,861.20x = 1,170,048.24 × 465,912.72
  4. Step 4: Simplify right side
    847,861.20x = 545,140,358,029.61
  5. Step 5: Solve for x
    x = 545,140,358,029.61/847,861.20
  6. Step 6: Final answer
    x = 642,959.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.