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Finding the Fourth Proportional to 431,469, 595,447.60 and 240,483.76

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Solution

The fourth proportional to 431,469, 595,447.60 and 240,483.76 is: 331,878.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,469 : 595,447.60 = 240,483.76 : x
  2. Step 2: Convert to fraction form
    431,469/595,447.60 = 240,483.76/x
  3. Step 3: Cross multiply
    431,469x = 595,447.60 × 240,483.76
  4. Step 4: Simplify right side
    431,469x = 143,195,477,730.98
  5. Step 5: Solve for x
    x = 143,195,477,730.98/431,469
  6. Step 6: Final answer
    x = 331,878.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.