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Finding the Fourth Proportional to 452,457.45, 678,454.02 and 239,340.39

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Solution

The fourth proportional to 452,457.45, 678,454.02 and 239,340.39 is: 358,887.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,457.45 : 678,454.02 = 239,340.39 : x
  2. Step 2: Convert to fraction form
    452,457.45/678,454.02 = 239,340.39/x
  3. Step 3: Cross multiply
    452,457.45x = 678,454.02 × 239,340.39
  4. Step 4: Simplify right side
    452,457.45x = 162,381,449,743.87
  5. Step 5: Solve for x
    x = 162,381,449,743.87/452,457.45
  6. Step 6: Final answer
    x = 358,887.78

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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.