Home / 776,215.44-1,162,938-421,002.88

Finding the Fourth Proportional to 776,215.44, 1,162,938 and 421,002.88

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Solution

The fourth proportional to 776,215.44, 1,162,938 and 421,002.88 is: 630,753.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,215.44 : 1,162,938 = 421,002.88 : x
  2. Step 2: Convert to fraction form
    776,215.44/1,162,938 = 421,002.88/x
  3. Step 3: Cross multiply
    776,215.44x = 1,162,938 × 421,002.88
  4. Step 4: Simplify right side
    776,215.44x = 489,600,247,261.44
  5. Step 5: Solve for x
    x = 489,600,247,261.44/776,215.44
  6. Step 6: Final answer
    x = 630,753.04

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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.