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Finding the Fourth Proportional to 478,424.80, 717,388.02 and 225,637.41

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Solution

The fourth proportional to 478,424.80, 717,388.02 and 225,637.41 is: 338,338.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,424.80 : 717,388.02 = 225,637.41 : x
  2. Step 2: Convert to fraction form
    478,424.80/717,388.02 = 225,637.41/x
  3. Step 3: Cross multiply
    478,424.80x = 717,388.02 × 225,637.41
  4. Step 4: Simplify right side
    478,424.80x = 161,869,574,797.83
  5. Step 5: Solve for x
    x = 161,869,574,797.83/478,424.80
  6. Step 6: Final answer
    x = 338,338.60

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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.