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Finding the Fourth Proportional to 521,526.09, 782,289.17 and 335,718.57

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Solution

The fourth proportional to 521,526.09, 782,289.17 and 335,718.57 is: 503,577.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,526.09 : 782,289.17 = 335,718.57 : x
  2. Step 2: Convert to fraction form
    521,526.09/782,289.17 = 335,718.57/x
  3. Step 3: Cross multiply
    521,526.09x = 782,289.17 × 335,718.57
  4. Step 4: Simplify right side
    521,526.09x = 262,628,999,800.29
  5. Step 5: Solve for x
    x = 262,628,999,800.29/521,526.09
  6. Step 6: Final answer
    x = 503,577.87

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Similar ratio
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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.