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Finding the Fourth Proportional to 664,507.28, 917,020.05 and 362,701.28

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Solution

The fourth proportional to 664,507.28, 917,020.05 and 362,701.28 is: 500,527.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,507.28 : 917,020.05 = 362,701.28 : x
  2. Step 2: Convert to fraction form
    664,507.28/917,020.05 = 362,701.28/x
  3. Step 3: Cross multiply
    664,507.28x = 917,020.05 × 362,701.28
  4. Step 4: Simplify right side
    664,507.28x = 332,604,345,920.66
  5. Step 5: Solve for x
    x = 332,604,345,920.66/664,507.28
  6. Step 6: Final answer
    x = 500,527.77

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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.