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Finding the Fourth Proportional to 538,102.70, 805,598.85 and 328,150.70

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Solution

The fourth proportional to 538,102.70, 805,598.85 and 328,150.70 is: 491,277.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,102.70 : 805,598.85 = 328,150.70 : x
  2. Step 2: Convert to fraction form
    538,102.70/805,598.85 = 328,150.70/x
  3. Step 3: Cross multiply
    538,102.70x = 805,598.85 × 328,150.70
  4. Step 4: Simplify right side
    538,102.70x = 264,357,826,546.70
  5. Step 5: Solve for x
    x = 264,357,826,546.70/538,102.70
  6. Step 6: Final answer
    x = 491,277.64

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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.