Home / 528,277.24-792,540.27-420,613.81

Finding the Fourth Proportional to 528,277.24, 792,540.27 and 420,613.81

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Solution

The fourth proportional to 528,277.24, 792,540.27 and 420,613.81 is: 631,019.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,277.24 : 792,540.27 = 420,613.81 : x
  2. Step 2: Convert to fraction form
    528,277.24/792,540.27 = 420,613.81/x
  3. Step 3: Cross multiply
    528,277.24x = 792,540.27 × 420,613.81
  4. Step 4: Simplify right side
    528,277.24x = 333,353,380,561.78
  5. Step 5: Solve for x
    x = 333,353,380,561.78/528,277.24
  6. Step 6: Final answer
    x = 631,019.76

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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.