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Finding the Fourth Proportional to 538,605.12, 807,820.14 and 254,295.12

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Solution

The fourth proportional to 538,605.12, 807,820.14 and 254,295.12 is: 381,401.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,605.12 : 807,820.14 = 254,295.12 : x
  2. Step 2: Convert to fraction form
    538,605.12/807,820.14 = 254,295.12/x
  3. Step 3: Cross multiply
    538,605.12x = 807,820.14 × 254,295.12
  4. Step 4: Simplify right side
    538,605.12x = 205,424,719,439.72
  5. Step 5: Solve for x
    x = 205,424,719,439.72/538,605.12
  6. Step 6: Final answer
    x = 381,401.35

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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.