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Finding the Fourth Proportional to 500,728.23, 750,634.29 and 216,240.84

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Solution

The fourth proportional to 500,728.23, 750,634.29 and 216,240.84 is: 324,163.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,728.23 : 750,634.29 = 216,240.84 : x
  2. Step 2: Convert to fraction form
    500,728.23/750,634.29 = 216,240.84/x
  3. Step 3: Cross multiply
    500,728.23x = 750,634.29 × 216,240.84
  4. Step 4: Simplify right side
    500,728.23x = 162,317,789,402.40
  5. Step 5: Solve for x
    x = 162,317,789,402.40/500,728.23
  6. Step 6: Final answer
    x = 324,163.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.