Home / 784,890.10-1,177,335.15-336,117.70

Finding the Fourth Proportional to 784,890.10, 1,177,335.15 and 336,117.70

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Solution

The fourth proportional to 784,890.10, 1,177,335.15 and 336,117.70 is: 504,176.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,890.10 : 1,177,335.15 = 336,117.70 : x
  2. Step 2: Convert to fraction form
    784,890.10/1,177,335.15 = 336,117.70/x
  3. Step 3: Cross multiply
    784,890.10x = 1,177,335.15 × 336,117.70
  4. Step 4: Simplify right side
    784,890.10x = 395,723,182,747.16
  5. Step 5: Solve for x
    x = 395,723,182,747.16/784,890.10
  6. Step 6: Final answer
    x = 504,176.55

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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.