Home / 1,021,147.20-1,409,145.12-568,428.48

Finding the Fourth Proportional to 1,021,147.20, 1,409,145.12 and 568,428.48

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Solution

The fourth proportional to 1,021,147.20, 1,409,145.12 and 568,428.48 is: 784,410.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,147.20 : 1,409,145.12 = 568,428.48 : x
  2. Step 2: Convert to fraction form
    1,021,147.20/1,409,145.12 = 568,428.48/x
  3. Step 3: Cross multiply
    1,021,147.20x = 1,409,145.12 × 568,428.48
  4. Step 4: Simplify right side
    1,021,147.20x = 800,998,218,661.02
  5. Step 5: Solve for x
    x = 800,998,218,661.02/1,021,147.20
  6. Step 6: Final answer
    x = 784,410.14

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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.