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Finding the Fourth Proportional to 490,346.73, 676,641.60 and 275,444.82

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Solution

The fourth proportional to 490,346.73, 676,641.60 and 275,444.82 is: 380,093.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,346.73 : 676,641.60 = 275,444.82 : x
  2. Step 2: Convert to fraction form
    490,346.73/676,641.60 = 275,444.82/x
  3. Step 3: Cross multiply
    490,346.73x = 676,641.60 × 275,444.82
  4. Step 4: Simplify right side
    490,346.73x = 186,377,423,716.51
  5. Step 5: Solve for x
    x = 186,377,423,716.51/490,346.73
  6. Step 6: Final answer
    x = 380,093.13

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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.