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Finding the Fourth Proportional to 490,427.34, 676,852.65 and 275,567.82

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Solution

The fourth proportional to 490,427.34, 676,852.65 and 275,567.82 is: 380,318.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,427.34 : 676,852.65 = 275,567.82 : x
  2. Step 2: Convert to fraction form
    490,427.34/676,852.65 = 275,567.82/x
  3. Step 3: Cross multiply
    490,427.34x = 676,852.65 × 275,567.82
  4. Step 4: Simplify right side
    490,427.34x = 186,518,809,221.72
  5. Step 5: Solve for x
    x = 186,518,809,221.72/490,427.34
  6. Step 6: Final answer
    x = 380,318.95

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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.