Home / 1,386,998.10-2,080,497.15-389,726.10

Finding the Fourth Proportional to 1,386,998.10, 2,080,497.15 and 389,726.10

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Solution

The fourth proportional to 1,386,998.10, 2,080,497.15 and 389,726.10 is: 584,589.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,998.10 : 2,080,497.15 = 389,726.10 : x
  2. Step 2: Convert to fraction form
    1,386,998.10/2,080,497.15 = 389,726.10/x
  3. Step 3: Cross multiply
    1,386,998.10x = 2,080,497.15 × 389,726.10
  4. Step 4: Simplify right side
    1,386,998.10x = 810,824,040,330.62
  5. Step 5: Solve for x
    x = 810,824,040,330.62/1,386,998.10
  6. Step 6: Final answer
    x = 584,589.15

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Double scale
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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.