Home / 837,421.38-1,256,102.82-238,385.88

Finding the Fourth Proportional to 837,421.38, 1,256,102.82 and 238,385.88

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Solution

The fourth proportional to 837,421.38, 1,256,102.82 and 238,385.88 is: 357,570.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,421.38 : 1,256,102.82 = 238,385.88 : x
  2. Step 2: Convert to fraction form
    837,421.38/1,256,102.82 = 238,385.88/x
  3. Step 3: Cross multiply
    837,421.38x = 1,256,102.82 × 238,385.88
  4. Step 4: Simplify right side
    837,421.38x = 299,437,176,116.18
  5. Step 5: Solve for x
    x = 299,437,176,116.18/837,421.38
  6. Step 6: Final answer
    x = 357,570.49

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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.