Home / 1,432,187.16-1,976,378.86-787,607.36

Finding the Fourth Proportional to 1,432,187.16, 1,976,378.86 and 787,607.36

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Solution

The fourth proportional to 1,432,187.16, 1,976,378.86 and 787,607.36 is: 1,086,876.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,187.16 : 1,976,378.86 = 787,607.36 : x
  2. Step 2: Convert to fraction form
    1,432,187.16/1,976,378.86 = 787,607.36/x
  3. Step 3: Cross multiply
    1,432,187.16x = 1,976,378.86 × 787,607.36
  4. Step 4: Simplify right side
    1,432,187.16x = 1,556,610,536,284.41
  5. Step 5: Solve for x
    x = 1,556,610,536,284.41/1,432,187.16
  6. Step 6: Final answer
    x = 1,086,876.48

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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.