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Finding the Fourth Proportional to 538,711.90, 808,942.65 and 362,002.30

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Solution

The fourth proportional to 538,711.90, 808,942.65 and 362,002.30 is: 543,591.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,711.90 : 808,942.65 = 362,002.30 : x
  2. Step 2: Convert to fraction form
    538,711.90/808,942.65 = 362,002.30/x
  3. Step 3: Cross multiply
    538,711.90x = 808,942.65 × 362,002.30
  4. Step 4: Simplify right side
    538,711.90x = 292,839,099,868.10
  5. Step 5: Solve for x
    x = 292,839,099,868.10/538,711.90
  6. Step 6: Final answer
    x = 543,591.30

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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.