Home / 923,891.72-1,385,840.79-284,191.12

Finding the Fourth Proportional to 923,891.72, 1,385,840.79 and 284,191.12

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Solution

The fourth proportional to 923,891.72, 1,385,840.79 and 284,191.12 is: 426,287.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,891.72 : 1,385,840.79 = 284,191.12 : x
  2. Step 2: Convert to fraction form
    923,891.72/1,385,840.79 = 284,191.12/x
  3. Step 3: Cross multiply
    923,891.72x = 1,385,840.79 × 284,191.12
  4. Step 4: Simplify right side
    923,891.72x = 393,843,646,251.79
  5. Step 5: Solve for x
    x = 393,843,646,251.79/923,891.72
  6. Step 6: Final answer
    x = 426,287.67

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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.