Home / 1,042,376.20-1,438,514.34-612,650.20

Finding the Fourth Proportional to 1,042,376.20, 1,438,514.34 and 612,650.20

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Solution

The fourth proportional to 1,042,376.20, 1,438,514.34 and 612,650.20 is: 845,477.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,376.20 : 1,438,514.34 = 612,650.20 : x
  2. Step 2: Convert to fraction form
    1,042,376.20/1,438,514.34 = 612,650.20/x
  3. Step 3: Cross multiply
    1,042,376.20x = 1,438,514.34 × 612,650.20
  4. Step 4: Simplify right side
    1,042,376.20x = 881,306,098,103.87
  5. Step 5: Solve for x
    x = 881,306,098,103.87/1,042,376.20
  6. Step 6: Final answer
    x = 845,477.96

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Double scale
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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.