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Finding the Fourth Proportional to 604,517.80, 907,359.90 and 305,336.20

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Solution

The fourth proportional to 604,517.80, 907,359.90 and 305,336.20 is: 458,298.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,517.80 : 907,359.90 = 305,336.20 : x
  2. Step 2: Convert to fraction form
    604,517.80/907,359.90 = 305,336.20/x
  3. Step 3: Cross multiply
    604,517.80x = 907,359.90 × 305,336.20
  4. Step 4: Simplify right side
    604,517.80x = 277,049,823,898.38
  5. Step 5: Solve for x
    x = 277,049,823,898.38/604,517.80
  6. Step 6: Final answer
    x = 458,298.87

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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.