Home / 1,037,112.30-1,555,668.45-438,749.10

Finding the Fourth Proportional to 1,037,112.30, 1,555,668.45 and 438,749.10

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Solution

The fourth proportional to 1,037,112.30, 1,555,668.45 and 438,749.10 is: 658,123.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,037,112.30 : 1,555,668.45 = 438,749.10 : x
  2. Step 2: Convert to fraction form
    1,037,112.30/1,555,668.45 = 438,749.10/x
  3. Step 3: Cross multiply
    1,037,112.30x = 1,555,668.45 × 438,749.10
  4. Step 4: Simplify right side
    1,037,112.30x = 682,548,132,335.90
  5. Step 5: Solve for x
    x = 682,548,132,335.90/1,037,112.30
  6. Step 6: Final answer
    x = 658,123.65

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Double scale
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Similar ratio
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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.