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Finding the Fourth Proportional to 450,819.14, 675,155.25 and 260,879.20

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Solution

The fourth proportional to 450,819.14, 675,155.25 and 260,879.20 is: 390,697.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,819.14 : 675,155.25 = 260,879.20 : x
  2. Step 2: Convert to fraction form
    450,819.14/675,155.25 = 260,879.20/x
  3. Step 3: Cross multiply
    450,819.14x = 675,155.25 × 260,879.20
  4. Step 4: Simplify right side
    450,819.14x = 176,133,959,807.91
  5. Step 5: Solve for x
    x = 176,133,959,807.91/450,819.14
  6. Step 6: Final answer
    x = 390,697.61

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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.