Home / 1,387,165.32-2,080,820.16-440,610.12

Finding the Fourth Proportional to 1,387,165.32, 2,080,820.16 and 440,610.12

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Solution

The fourth proportional to 1,387,165.32, 2,080,820.16 and 440,610.12 is: 660,938.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,165.32 : 2,080,820.16 = 440,610.12 : x
  2. Step 2: Convert to fraction form
    1,387,165.32/2,080,820.16 = 440,610.12/x
  3. Step 3: Cross multiply
    1,387,165.32x = 2,080,820.16 × 440,610.12
  4. Step 4: Simplify right side
    1,387,165.32x = 916,830,420,396.02
  5. Step 5: Solve for x
    x = 916,830,420,396.02/1,387,165.32
  6. Step 6: Final answer
    x = 660,938.11

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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.