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Finding the Fourth Proportional to 480,992.04, 663,479.87 and 317,650.05

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Solution

The fourth proportional to 480,992.04, 663,479.87 and 317,650.05 is: 438,166.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,992.04 : 663,479.87 = 317,650.05 : x
  2. Step 2: Convert to fraction form
    480,992.04/663,479.87 = 317,650.05/x
  3. Step 3: Cross multiply
    480,992.04x = 663,479.87 × 317,650.05
  4. Step 4: Simplify right side
    480,992.04x = 210,754,412,291.24
  5. Step 5: Solve for x
    x = 210,754,412,291.24/480,992.04
  6. Step 6: Final answer
    x = 438,166.11

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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.