Home / 1,280,944.81-1,767,700.58-729,660.43

Finding the Fourth Proportional to 1,280,944.81, 1,767,700.58 and 729,660.43

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Solution

The fourth proportional to 1,280,944.81, 1,767,700.58 and 729,660.43 is: 1,006,929.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,944.81 : 1,767,700.58 = 729,660.43 : x
  2. Step 2: Convert to fraction form
    1,280,944.81/1,767,700.58 = 729,660.43/x
  3. Step 3: Cross multiply
    1,280,944.81x = 1,767,700.58 × 729,660.43
  4. Step 4: Simplify right side
    1,280,944.81x = 1,289,821,161,665.75
  5. Step 5: Solve for x
    x = 1,289,821,161,665.75/1,280,944.81
  6. Step 6: Final answer
    x = 1,006,929.53

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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.