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Finding the Fourth Proportional to 467,565.09, 645,474.47 and 306,666.69

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Solution

The fourth proportional to 467,565.09, 645,474.47 and 306,666.69 is: 423,353.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,565.09 : 645,474.47 = 306,666.69 : x
  2. Step 2: Convert to fraction form
    467,565.09/645,474.47 = 306,666.69/x
  3. Step 3: Cross multiply
    467,565.09x = 645,474.47 × 306,666.69
  4. Step 4: Simplify right side
    467,565.09x = 197,945,517,661.07
  5. Step 5: Solve for x
    x = 197,945,517,661.07/467,565.09
  6. Step 6: Final answer
    x = 423,353.93

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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.