Home / 1,440,265-1,987,565.70-836,691.88

Finding the Fourth Proportional to 1,440,265, 1,987,565.70 and 836,691.88

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Solution

The fourth proportional to 1,440,265, 1,987,565.70 and 836,691.88 is: 1,154,634.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,265 : 1,987,565.70 = 836,691.88 : x
  2. Step 2: Convert to fraction form
    1,440,265/1,987,565.70 = 836,691.88/x
  3. Step 3: Cross multiply
    1,440,265x = 1,987,565.70 × 836,691.88
  4. Step 4: Simplify right side
    1,440,265x = 1,662,980,082,156.52
  5. Step 5: Solve for x
    x = 1,662,980,082,156.52/1,440,265
  6. Step 6: Final answer
    x = 1,154,634.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.