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Finding the Fourth Proportional to 540,159.39, 745,427.79 and 298,447.56

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Solution

The fourth proportional to 540,159.39, 745,427.79 and 298,447.56 is: 411,861.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,159.39 : 745,427.79 = 298,447.56 : x
  2. Step 2: Convert to fraction form
    540,159.39/745,427.79 = 298,447.56/x
  3. Step 3: Cross multiply
    540,159.39x = 745,427.79 × 298,447.56
  4. Step 4: Simplify right side
    540,159.39x = 222,471,105,081.69
  5. Step 5: Solve for x
    x = 222,471,105,081.69/540,159.39
  6. Step 6: Final answer
    x = 411,861.96

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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.