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Finding the Fourth Proportional to 560,010.80, 840,016.20 and 323,814.80

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Solution

The fourth proportional to 560,010.80, 840,016.20 and 323,814.80 is: 485,722.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,010.80 : 840,016.20 = 323,814.80 : x
  2. Step 2: Convert to fraction form
    560,010.80/840,016.20 = 323,814.80/x
  3. Step 3: Cross multiply
    560,010.80x = 840,016.20 × 323,814.80
  4. Step 4: Simplify right side
    560,010.80x = 272,009,677,799.76
  5. Step 5: Solve for x
    x = 272,009,677,799.76/560,010.80
  6. Step 6: Final answer
    x = 485,722.20

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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.