Home / 1,387,104.10-2,080,656.15-389,832.10

Finding the Fourth Proportional to 1,387,104.10, 2,080,656.15 and 389,832.10

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Solution

The fourth proportional to 1,387,104.10, 2,080,656.15 and 389,832.10 is: 584,748.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,104.10 : 2,080,656.15 = 389,832.10 : x
  2. Step 2: Convert to fraction form
    1,387,104.10/2,080,656.15 = 389,832.10/x
  3. Step 3: Cross multiply
    1,387,104.10x = 2,080,656.15 × 389,832.10
  4. Step 4: Simplify right side
    1,387,104.10x = 811,106,556,332.42
  5. Step 5: Solve for x
    x = 811,106,556,332.42/1,387,104.10
  6. Step 6: Final answer
    x = 584,748.15

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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.