Home / 788,013.20-1,182,101.88-255,512.72

Finding the Fourth Proportional to 788,013.20, 1,182,101.88 and 255,512.72

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Solution

The fourth proportional to 788,013.20, 1,182,101.88 and 255,512.72 is: 383,295.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,013.20 : 1,182,101.88 = 255,512.72 : x
  2. Step 2: Convert to fraction form
    788,013.20/1,182,101.88 = 255,512.72/x
  3. Step 3: Cross multiply
    788,013.20x = 1,182,101.88 × 255,512.72
  4. Step 4: Simplify right side
    788,013.20x = 302,042,066,675.91
  5. Step 5: Solve for x
    x = 302,042,066,675.91/788,013.20
  6. Step 6: Final answer
    x = 383,295.69

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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.