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Finding the Fourth Proportional to 480,949.56, 663,922.98 and 287,425.56

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Solution

The fourth proportional to 480,949.56, 663,922.98 and 287,425.56 is: 396,774.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,949.56 : 663,922.98 = 287,425.56 : x
  2. Step 2: Convert to fraction form
    480,949.56/663,922.98 = 287,425.56/x
  3. Step 3: Cross multiply
    480,949.56x = 663,922.98 × 287,425.56
  4. Step 4: Simplify right side
    480,949.56x = 190,828,434,323.37
  5. Step 5: Solve for x
    x = 190,828,434,323.37/480,949.56
  6. Step 6: Final answer
    x = 396,774.32

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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.