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Finding the Fourth Proportional to 1,998,000.10, 2,997,000.15 and 1,814,948.20

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Solution

The fourth proportional to 1,998,000.10, 2,997,000.15 and 1,814,948.20 is: 2,722,422.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998,000.10 : 2,997,000.15 = 1,814,948.20 : x
  2. Step 2: Convert to fraction form
    1,998,000.10/2,997,000.15 = 1,814,948.20/x
  3. Step 3: Cross multiply
    1,998,000.10x = 2,997,000.15 × 1,814,948.20
  4. Step 4: Simplify right side
    1,998,000.10x = 5,439,400,027,642.23
  5. Step 5: Solve for x
    x = 5,439,400,027,642.23/1,998,000.10
  6. Step 6: Final answer
    x = 2,722,422.30

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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.