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Finding the Fourth Proportional to 488,119.80, 732,835.80 and 311,410.20

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Solution

The fourth proportional to 488,119.80, 732,835.80 and 311,410.20 is: 467,533.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,119.80 : 732,835.80 = 311,410.20 : x
  2. Step 2: Convert to fraction form
    488,119.80/732,835.80 = 311,410.20/x
  3. Step 3: Cross multiply
    488,119.80x = 732,835.80 × 311,410.20
  4. Step 4: Simplify right side
    488,119.80x = 228,212,543,045.16
  5. Step 5: Solve for x
    x = 228,212,543,045.16/488,119.80
  6. Step 6: Final answer
    x = 467,533.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.