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Finding the Fourth Proportional to 540,186.27, 745,437 and 298,463.64

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Solution

The fourth proportional to 540,186.27, 745,437 and 298,463.64 is: 411,868.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,186.27 : 745,437 = 298,463.64 : x
  2. Step 2: Convert to fraction form
    540,186.27/745,437 = 298,463.64/x
  3. Step 3: Cross multiply
    540,186.27x = 745,437 × 298,463.64
  4. Step 4: Simplify right side
    540,186.27x = 222,485,840,410.68
  5. Step 5: Solve for x
    x = 222,485,840,410.68/540,186.27
  6. Step 6: Final answer
    x = 411,868.74

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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.