Home / 822,749.40-1,234,247.22-261,909.72

Finding the Fourth Proportional to 822,749.40, 1,234,247.22 and 261,909.72

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Solution

The fourth proportional to 822,749.40, 1,234,247.22 and 261,909.72 is: 392,903.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,749.40 : 1,234,247.22 = 261,909.72 : x
  2. Step 2: Convert to fraction form
    822,749.40/1,234,247.22 = 261,909.72/x
  3. Step 3: Cross multiply
    822,749.40x = 1,234,247.22 × 261,909.72
  4. Step 4: Simplify right side
    822,749.40x = 323,261,343,800.98
  5. Step 5: Solve for x
    x = 323,261,343,800.98/822,749.40
  6. Step 6: Final answer
    x = 392,903.77

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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.