Home / 983,500.80-1,475,251.20-318,652.80

Finding the Fourth Proportional to 983,500.80, 1,475,251.20 and 318,652.80

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Solution

The fourth proportional to 983,500.80, 1,475,251.20 and 318,652.80 is: 477,979.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,500.80 : 1,475,251.20 = 318,652.80 : x
  2. Step 2: Convert to fraction form
    983,500.80/1,475,251.20 = 318,652.80/x
  3. Step 3: Cross multiply
    983,500.80x = 1,475,251.20 × 318,652.80
  4. Step 4: Simplify right side
    983,500.80x = 470,092,925,583.36
  5. Step 5: Solve for x
    x = 470,092,925,583.36/983,500.80
  6. Step 6: Final answer
    x = 477,979.20

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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.