Home / 766,144.83-1,148,818.17-285,977.76

Finding the Fourth Proportional to 766,144.83, 1,148,818.17 and 285,977.76

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Solution

The fourth proportional to 766,144.83, 1,148,818.17 and 285,977.76 is: 428,817.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,144.83 : 1,148,818.17 = 285,977.76 : x
  2. Step 2: Convert to fraction form
    766,144.83/1,148,818.17 = 285,977.76/x
  3. Step 3: Cross multiply
    766,144.83x = 1,148,818.17 × 285,977.76
  4. Step 4: Simplify right side
    766,144.83x = 328,536,446,903.90
  5. Step 5: Solve for x
    x = 328,536,446,903.90/766,144.83
  6. Step 6: Final answer
    x = 428,817.68

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1.5x scale

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.