Home / 1,432,478.16-1,976,820.89-787,947.39

Finding the Fourth Proportional to 1,432,478.16, 1,976,820.89 and 787,947.39

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Solution

The fourth proportional to 1,432,478.16, 1,976,820.89 and 787,947.39 is: 1,087,367.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,478.16 : 1,976,820.89 = 787,947.39 : x
  2. Step 2: Convert to fraction form
    1,432,478.16/1,976,820.89 = 787,947.39/x
  3. Step 3: Cross multiply
    1,432,478.16x = 1,976,820.89 × 787,947.39
  4. Step 4: Simplify right side
    1,432,478.16x = 1,557,630,860,772.98
  5. Step 5: Solve for x
    x = 1,557,630,860,772.98/1,432,478.16
  6. Step 6: Final answer
    x = 1,087,367.96

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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.