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Finding the Fourth Proportional to 480,532.80, 663,273.66 and 317,308.50

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Solution

The fourth proportional to 480,532.80, 663,273.66 and 317,308.50 is: 437,977.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,532.80 : 663,273.66 = 317,308.50 : x
  2. Step 2: Convert to fraction form
    480,532.80/663,273.66 = 317,308.50/x
  3. Step 3: Cross multiply
    480,532.80x = 663,273.66 × 317,308.50
  4. Step 4: Simplify right side
    480,532.80x = 210,462,370,144.11
  5. Step 5: Solve for x
    x = 210,462,370,144.11/480,532.80
  6. Step 6: Final answer
    x = 437,977.12

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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.