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Finding the Fourth Proportional to 480,660.20, 719,478.62 and 330,018.92

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Solution

The fourth proportional to 480,660.20, 719,478.62 and 330,018.92 is: 493,990.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,660.20 : 719,478.62 = 330,018.92 : x
  2. Step 2: Convert to fraction form
    480,660.20/719,478.62 = 330,018.92/x
  3. Step 3: Cross multiply
    480,660.20x = 719,478.62 × 330,018.92
  4. Step 4: Simplify right side
    480,660.20x = 237,441,557,135.49
  5. Step 5: Solve for x
    x = 237,441,557,135.49/480,660.20
  6. Step 6: Final answer
    x = 493,990.47

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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.