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Finding the Fourth Proportional to 622,812.92, 933,493.55 and 285,889.14

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Solution

The fourth proportional to 622,812.92, 933,493.55 and 285,889.14 is: 428,500.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,812.92 : 933,493.55 = 285,889.14 : x
  2. Step 2: Convert to fraction form
    622,812.92/933,493.55 = 285,889.14/x
  3. Step 3: Cross multiply
    622,812.92x = 933,493.55 × 285,889.14
  4. Step 4: Simplify right side
    622,812.92x = 266,875,666,775.60
  5. Step 5: Solve for x
    x = 266,875,666,775.60/622,812.92
  6. Step 6: Final answer
    x = 428,500.53

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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.