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Finding the Fourth Proportional to 452,458.45, 678,455.52 and 239,341.39

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Solution

The fourth proportional to 452,458.45, 678,455.52 and 239,341.39 is: 358,889.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,458.45 : 678,455.52 = 239,341.39 : x
  2. Step 2: Convert to fraction form
    452,458.45/678,455.52 = 239,341.39/x
  3. Step 3: Cross multiply
    452,458.45x = 678,455.52 × 239,341.39
  4. Step 4: Simplify right side
    452,458.45x = 162,382,487,209.97
  5. Step 5: Solve for x
    x = 162,382,487,209.97/452,458.45
  6. Step 6: Final answer
    x = 358,889.28

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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.