Home / 766,118.63-1,148,753.30-355,339.88

Finding the Fourth Proportional to 766,118.63, 1,148,753.30 and 355,339.88

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Solution

The fourth proportional to 766,118.63, 1,148,753.30 and 355,339.88 is: 532,812.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,118.63 : 1,148,753.30 = 355,339.88 : x
  2. Step 2: Convert to fraction form
    766,118.63/1,148,753.30 = 355,339.88/x
  3. Step 3: Cross multiply
    766,118.63x = 1,148,753.30 × 355,339.88
  4. Step 4: Simplify right side
    766,118.63x = 408,197,860,866.79
  5. Step 5: Solve for x
    x = 408,197,860,866.79/766,118.63
  6. Step 6: Final answer
    x = 532,812.87

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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.