Home / 1,387,132.20-2,080,698.30-889,468.20

Finding the Fourth Proportional to 1,387,132.20, 2,080,698.30 and 889,468.20

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Solution

The fourth proportional to 1,387,132.20, 2,080,698.30 and 889,468.20 is: 1,334,202.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,132.20 : 2,080,698.30 = 889,468.20 : x
  2. Step 2: Convert to fraction form
    1,387,132.20/2,080,698.30 = 889,468.20/x
  3. Step 3: Cross multiply
    1,387,132.20x = 2,080,698.30 × 889,468.20
  4. Step 4: Simplify right side
    1,387,132.20x = 1,850,714,971,644.06
  5. Step 5: Solve for x
    x = 1,850,714,971,644.06/1,387,132.20
  6. Step 6: Final answer
    x = 1,334,202.30

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Double scale
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Similar ratio
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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.