Home / 1,432,108.69-1,976,258.86-787,523.25

Finding the Fourth Proportional to 1,432,108.69, 1,976,258.86 and 787,523.25

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Solution

The fourth proportional to 1,432,108.69, 1,976,258.86 and 787,523.25 is: 1,086,753.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,108.69 : 1,976,258.86 = 787,523.25 : x
  2. Step 2: Convert to fraction form
    1,432,108.69/1,976,258.86 = 787,523.25/x
  3. Step 3: Cross multiply
    1,432,108.69x = 1,976,258.86 × 787,523.25
  4. Step 4: Simplify right side
    1,432,108.69x = 1,556,349,800,268.50
  5. Step 5: Solve for x
    x = 1,556,349,800,268.50/1,432,108.69
  6. Step 6: Final answer
    x = 1,086,753.97

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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.