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Finding the Fourth Proportional to 560,025.50, 840,308.56 and 275,561.78

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Solution

The fourth proportional to 560,025.50, 840,308.56 and 275,561.78 is: 413,475.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,025.50 : 840,308.56 = 275,561.78 : x
  2. Step 2: Convert to fraction form
    560,025.50/840,308.56 = 275,561.78/x
  3. Step 3: Cross multiply
    560,025.50x = 840,308.56 × 275,561.78
  4. Step 4: Simplify right side
    560,025.50x = 231,556,917,652.39
  5. Step 5: Solve for x
    x = 231,556,917,652.39/560,025.50
  6. Step 6: Final answer
    x = 413,475.67

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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.