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Finding the Fourth Proportional to 480,539.52, 663,282.99 and 317,315.25

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Solution

The fourth proportional to 480,539.52, 663,282.99 and 317,315.25 is: 437,986.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,539.52 : 663,282.99 = 317,315.25 : x
  2. Step 2: Convert to fraction form
    480,539.52/663,282.99 = 317,315.25/x
  3. Step 3: Cross multiply
    480,539.52x = 663,282.99 × 317,315.25
  4. Step 4: Simplify right side
    480,539.52x = 210,469,807,792.60
  5. Step 5: Solve for x
    x = 210,469,807,792.60/480,539.52
  6. Step 6: Final answer
    x = 437,986.47

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1.5x scale

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.