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Finding the Fourth Proportional to 540,397.36, 745,786.92 and 298,674.72

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Solution

The fourth proportional to 540,397.36, 745,786.92 and 298,674.72 is: 412,192.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,397.36 : 745,786.92 = 298,674.72 : x
  2. Step 2: Convert to fraction form
    540,397.36/745,786.92 = 298,674.72/x
  3. Step 3: Cross multiply
    540,397.36x = 745,786.92 × 298,674.72
  4. Step 4: Simplify right side
    540,397.36x = 222,747,699,510.66
  5. Step 5: Solve for x
    x = 222,747,699,510.66/540,397.36
  6. Step 6: Final answer
    x = 412,192.43

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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.