Home / 646,777.20-892,618.20-360,343.92

Finding the Fourth Proportional to 646,777.20, 892,618.20 and 360,343.92

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Solution

The fourth proportional to 646,777.20, 892,618.20 and 360,343.92 is: 497,311.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,777.20 : 892,618.20 = 360,343.92 : x
  2. Step 2: Convert to fraction form
    646,777.20/892,618.20 = 360,343.92/x
  3. Step 3: Cross multiply
    646,777.20x = 892,618.20 × 360,343.92
  4. Step 4: Simplify right side
    646,777.20x = 321,649,541,251.34
  5. Step 5: Solve for x
    x = 321,649,541,251.34/646,777.20
  6. Step 6: Final answer
    x = 497,311.19

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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.