Home / 1,379,011.67-2,068,517.51-432,456.20

Finding the Fourth Proportional to 1,379,011.67, 2,068,517.51 and 432,456.20

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Solution

The fourth proportional to 1,379,011.67, 2,068,517.51 and 432,456.20 is: 648,684.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,011.67 : 2,068,517.51 = 432,456.20 : x
  2. Step 2: Convert to fraction form
    1,379,011.67/2,068,517.51 = 432,456.20/x
  3. Step 3: Cross multiply
    1,379,011.67x = 2,068,517.51 × 432,456.20
  4. Step 4: Simplify right side
    1,379,011.67x = 894,543,222,008.06
  5. Step 5: Solve for x
    x = 894,543,222,008.06/1,379,011.67
  6. Step 6: Final answer
    x = 648,684.30

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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.