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Finding the Fourth Proportional to 560,516.40, 840,769.08 and 256,824.48

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Solution

The fourth proportional to 560,516.40, 840,769.08 and 256,824.48 is: 385,234.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,516.40 : 840,769.08 = 256,824.48 : x
  2. Step 2: Convert to fraction form
    560,516.40/840,769.08 = 256,824.48/x
  3. Step 3: Cross multiply
    560,516.40x = 840,769.08 × 256,824.48
  4. Step 4: Simplify right side
    560,516.40x = 215,930,081,771.08
  5. Step 5: Solve for x
    x = 215,930,081,771.08/560,516.40
  6. Step 6: Final answer
    x = 385,234.19

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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.