Home / 788,139.30-1,182,500.55-255,677.70

Finding the Fourth Proportional to 788,139.30, 1,182,500.55 and 255,677.70

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Solution

The fourth proportional to 788,139.30, 1,182,500.55 and 255,677.70 is: 383,611.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,139.30 : 1,182,500.55 = 255,677.70 : x
  2. Step 2: Convert to fraction form
    788,139.30/1,182,500.55 = 255,677.70/x
  3. Step 3: Cross multiply
    788,139.30x = 1,182,500.55 × 255,677.70
  4. Step 4: Simplify right side
    788,139.30x = 302,339,020,872.74
  5. Step 5: Solve for x
    x = 302,339,020,872.74/788,139.30
  6. Step 6: Final answer
    x = 383,611.15

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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.