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Finding the Fourth Proportional to 418,785, 577,923.57 and 237,438.96

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Solution

The fourth proportional to 418,785, 577,923.57 and 237,438.96 is: 327,665.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,785 : 577,923.57 = 237,438.96 : x
  2. Step 2: Convert to fraction form
    418,785/577,923.57 = 237,438.96/x
  3. Step 3: Cross multiply
    418,785x = 577,923.57 × 237,438.96
  4. Step 4: Simplify right side
    418,785x = 137,221,571,420.29
  5. Step 5: Solve for x
    x = 137,221,571,420.29/418,785
  6. Step 6: Final answer
    x = 327,665.92

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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.