Home / 766,042.72-1,057,098.44-439,338.88

Finding the Fourth Proportional to 766,042.72, 1,057,098.44 and 439,338.88

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Solution

The fourth proportional to 766,042.72, 1,057,098.44 and 439,338.88 is: 606,264.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,042.72 : 1,057,098.44 = 439,338.88 : x
  2. Step 2: Convert to fraction form
    766,042.72/1,057,098.44 = 439,338.88/x
  3. Step 3: Cross multiply
    766,042.72x = 1,057,098.44 × 439,338.88
  4. Step 4: Simplify right side
    766,042.72x = 464,424,444,679.35
  5. Step 5: Solve for x
    x = 464,424,444,679.35/766,042.72
  6. Step 6: Final answer
    x = 606,264.42

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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.