Home / 1,042,256.40-1,562,218.20-443,115.60

Finding the Fourth Proportional to 1,042,256.40, 1,562,218.20 and 443,115.60

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Solution

The fourth proportional to 1,042,256.40, 1,562,218.20 and 443,115.60 is: 664,177.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,256.40 : 1,562,218.20 = 443,115.60 : x
  2. Step 2: Convert to fraction form
    1,042,256.40/1,562,218.20 = 443,115.60/x
  3. Step 3: Cross multiply
    1,042,256.40x = 1,562,218.20 × 443,115.60
  4. Step 4: Simplify right side
    1,042,256.40x = 692,243,255,023.92
  5. Step 5: Solve for x
    x = 692,243,255,023.92/1,042,256.40
  6. Step 6: Final answer
    x = 664,177.50

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Double scale
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1.5x scale

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.