Home / 1,115,780.20-1,673,670.30-274,331.95

Finding the Fourth Proportional to 1,115,780.20, 1,673,670.30 and 274,331.95

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Solution

The fourth proportional to 1,115,780.20, 1,673,670.30 and 274,331.95 is: 411,497.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,780.20 : 1,673,670.30 = 274,331.95 : x
  2. Step 2: Convert to fraction form
    1,115,780.20/1,673,670.30 = 274,331.95/x
  3. Step 3: Cross multiply
    1,115,780.20x = 1,673,670.30 × 274,331.95
  4. Step 4: Simplify right side
    1,115,780.20x = 459,141,237,056.09
  5. Step 5: Solve for x
    x = 459,141,237,056.09/1,115,780.20
  6. Step 6: Final answer
    x = 411,497.93

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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.