Home / 1,396,412.10-2,094,618.15-918,115.20

Finding the Fourth Proportional to 1,396,412.10, 2,094,618.15 and 918,115.20

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Solution

The fourth proportional to 1,396,412.10, 2,094,618.15 and 918,115.20 is: 1,377,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,412.10 : 2,094,618.15 = 918,115.20 : x
  2. Step 2: Convert to fraction form
    1,396,412.10/2,094,618.15 = 918,115.20/x
  3. Step 3: Cross multiply
    1,396,412.10x = 2,094,618.15 × 918,115.20
  4. Step 4: Simplify right side
    1,396,412.10x = 1,923,100,761,710.88
  5. Step 5: Solve for x
    x = 1,923,100,761,710.88/1,396,412.10
  6. Step 6: Final answer
    x = 1,377,172.80

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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.