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Finding the Fourth Proportional to 533,821.20, 800,731.80 and 498,829.20

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Solution

The fourth proportional to 533,821.20, 800,731.80 and 498,829.20 is: 748,243.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,821.20 : 800,731.80 = 498,829.20 : x
  2. Step 2: Convert to fraction form
    533,821.20/800,731.80 = 498,829.20/x
  3. Step 3: Cross multiply
    533,821.20x = 800,731.80 × 498,829.20
  4. Step 4: Simplify right side
    533,821.20x = 399,428,403,208.56
  5. Step 5: Solve for x
    x = 399,428,403,208.56/533,821.20
  6. Step 6: Final answer
    x = 748,243.80

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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.