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Finding the Fourth Proportional to 480,908.63, 663,918.78 and 360,006.41

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Solution

The fourth proportional to 480,908.63, 663,918.78 and 360,006.41 is: 497,007.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,908.63 : 663,918.78 = 360,006.41 : x
  2. Step 2: Convert to fraction form
    480,908.63/663,918.78 = 360,006.41/x
  3. Step 3: Cross multiply
    480,908.63x = 663,918.78 × 360,006.41
  4. Step 4: Simplify right side
    480,908.63x = 239,015,016,519.38
  5. Step 5: Solve for x
    x = 239,015,016,519.38/480,908.63
  6. Step 6: Final answer
    x = 497,007.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.