Home / 788,031.15-1,182,212.78-255,510.65

Finding the Fourth Proportional to 788,031.15, 1,182,212.78 and 255,510.65

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Solution

The fourth proportional to 788,031.15, 1,182,212.78 and 255,510.65 is: 383,319.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,031.15 : 1,182,212.78 = 255,510.65 : x
  2. Step 2: Convert to fraction form
    788,031.15/1,182,212.78 = 255,510.65/x
  3. Step 3: Cross multiply
    788,031.15x = 1,182,212.78 × 255,510.65
  4. Step 4: Simplify right side
    788,031.15x = 302,067,948,667.49
  5. Step 5: Solve for x
    x = 302,067,948,667.49/788,031.15
  6. Step 6: Final answer
    x = 383,319.81

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Double scale
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Similar ratio
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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.