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Finding the Fourth Proportional to 480,965.52, 663,612.96 and 310,995.12

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Solution

The fourth proportional to 480,965.52, 663,612.96 and 310,995.12 is: 429,096.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,965.52 : 663,612.96 = 310,995.12 : x
  2. Step 2: Convert to fraction form
    480,965.52/663,612.96 = 310,995.12/x
  3. Step 3: Cross multiply
    480,965.52x = 663,612.96 × 310,995.12
  4. Step 4: Simplify right side
    480,965.52x = 206,380,392,128.76
  5. Step 5: Solve for x
    x = 206,380,392,128.76/480,965.52
  6. Step 6: Final answer
    x = 429,096.02

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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.