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Finding the Fourth Proportional to 408,313.74, 612,469.25 and 104,707.57

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Solution

The fourth proportional to 408,313.74, 612,469.25 and 104,707.57 is: 157,061.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,313.74 : 612,469.25 = 104,707.57 : x
  2. Step 2: Convert to fraction form
    408,313.74/612,469.25 = 104,707.57/x
  3. Step 3: Cross multiply
    408,313.74x = 612,469.25 × 104,707.57
  4. Step 4: Simplify right side
    408,313.74x = 64,130,163,281.34
  5. Step 5: Solve for x
    x = 64,130,163,281.34/408,313.74
  6. Step 6: Final answer
    x = 157,061.00

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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.