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Finding the Fourth Proportional to 408,300.90, 613,107.45 and 296,763.90

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Solution

The fourth proportional to 408,300.90, 613,107.45 and 296,763.90 is: 445,622.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,300.90 : 613,107.45 = 296,763.90 : x
  2. Step 2: Convert to fraction form
    408,300.90/613,107.45 = 296,763.90/x
  3. Step 3: Cross multiply
    408,300.90x = 613,107.45 × 296,763.90
  4. Step 4: Simplify right side
    408,300.90x = 181,948,157,981.06
  5. Step 5: Solve for x
    x = 181,948,157,981.06/408,300.90
  6. Step 6: Final answer
    x = 445,622.72

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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.