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Finding the Fourth Proportional to 604,423.20, 906,634.80 and 446,959.20

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Solution

The fourth proportional to 604,423.20, 906,634.80 and 446,959.20 is: 670,438.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,423.20 : 906,634.80 = 446,959.20 : x
  2. Step 2: Convert to fraction form
    604,423.20/906,634.80 = 446,959.20/x
  3. Step 3: Cross multiply
    604,423.20x = 906,634.80 × 446,959.20
  4. Step 4: Simplify right side
    604,423.20x = 405,228,764,900.16
  5. Step 5: Solve for x
    x = 405,228,764,900.16/604,423.20
  6. Step 6: Final answer
    x = 670,438.80

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Similar ratio
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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.