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Finding the Fourth Proportional to 480,328.80, 719,715.60 and 302,517.60

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Solution

The fourth proportional to 480,328.80, 719,715.60 and 302,517.60 is: 453,286.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,328.80 : 719,715.60 = 302,517.60 : x
  2. Step 2: Convert to fraction form
    480,328.80/719,715.60 = 302,517.60/x
  3. Step 3: Cross multiply
    480,328.80x = 719,715.60 × 302,517.60
  4. Step 4: Simplify right side
    480,328.80x = 217,726,635,994.56
  5. Step 5: Solve for x
    x = 217,726,635,994.56/480,328.80
  6. Step 6: Final answer
    x = 453,286.66

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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.