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Finding the Fourth Proportional to 552,010.46, 761,778.65 and 306,998.64

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Solution

The fourth proportional to 552,010.46, 761,778.65 and 306,998.64 is: 423,660.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,010.46 : 761,778.65 = 306,998.64 : x
  2. Step 2: Convert to fraction form
    552,010.46/761,778.65 = 306,998.64/x
  3. Step 3: Cross multiply
    552,010.46x = 761,778.65 × 306,998.64
  4. Step 4: Simplify right side
    552,010.46x = 233,865,007,996.04
  5. Step 5: Solve for x
    x = 233,865,007,996.04/552,010.46
  6. Step 6: Final answer
    x = 423,660.47

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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.