Home / 784,689.78-1,177,045.61-223,724.28

Finding the Fourth Proportional to 784,689.78, 1,177,045.61 and 223,724.28

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Solution

The fourth proportional to 784,689.78, 1,177,045.61 and 223,724.28 is: 335,589.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,689.78 : 1,177,045.61 = 223,724.28 : x
  2. Step 2: Convert to fraction form
    784,689.78/1,177,045.61 = 223,724.28/x
  3. Step 3: Cross multiply
    784,689.78x = 1,177,045.61 × 223,724.28
  4. Step 4: Simplify right side
    784,689.78x = 263,333,680,505.79
  5. Step 5: Solve for x
    x = 263,333,680,505.79/784,689.78
  6. Step 6: Final answer
    x = 335,589.54

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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.