Home / 3,119,221.80-4,678,487.10-2,557,276.20

Finding the Fourth Proportional to 3,119,221.80, 4,678,487.10 and 2,557,276.20

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Solution

The fourth proportional to 3,119,221.80, 4,678,487.10 and 2,557,276.20 is: 3,835,630.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119,221.80 : 4,678,487.10 = 2,557,276.20 : x
  2. Step 2: Convert to fraction form
    3,119,221.80/4,678,487.10 = 2,557,276.20/x
  3. Step 3: Cross multiply
    3,119,221.80x = 4,678,487.10 × 2,557,276.20
  4. Step 4: Simplify right side
    3,119,221.80x = 11,964,183,712,837.02
  5. Step 5: Solve for x
    x = 11,964,183,712,837.02/3,119,221.80
  6. Step 6: Final answer
    x = 3,835,630.96

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Double scale
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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.