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Finding the Fourth Proportional to 408,315.74, 612,472.24 and 104,709.57

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Solution

The fourth proportional to 408,315.74, 612,472.24 and 104,709.57 is: 157,064.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,315.74 : 612,472.24 = 104,709.57 : x
  2. Step 2: Convert to fraction form
    408,315.74/612,472.24 = 104,709.57/x
  3. Step 3: Cross multiply
    408,315.74x = 612,472.24 × 104,709.57
  4. Step 4: Simplify right side
    408,315.74x = 64,131,704,887.34
  5. Step 5: Solve for x
    x = 64,131,704,887.34/408,315.74
  6. Step 6: Final answer
    x = 157,064.00

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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.