Home / 778,978.20-1,168,467.30-737,643.90

Finding the Fourth Proportional to 778,978.20, 1,168,467.30 and 737,643.90

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Solution

The fourth proportional to 778,978.20, 1,168,467.30 and 737,643.90 is: 1,106,465.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,978.20 : 1,168,467.30 = 737,643.90 : x
  2. Step 2: Convert to fraction form
    778,978.20/1,168,467.30 = 737,643.90/x
  3. Step 3: Cross multiply
    778,978.20x = 1,168,467.30 × 737,643.90
  4. Step 4: Simplify right side
    778,978.20x = 861,912,776,194.47
  5. Step 5: Solve for x
    x = 861,912,776,194.47/778,978.20
  6. Step 6: Final answer
    x = 1,106,465.85

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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.