Home / 813,501.07-1,219,391.24-300,836.78

Finding the Fourth Proportional to 813,501.07, 1,219,391.24 and 300,836.78

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Solution

The fourth proportional to 813,501.07, 1,219,391.24 and 300,836.78 is: 450,937.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,501.07 : 1,219,391.24 = 300,836.78 : x
  2. Step 2: Convert to fraction form
    813,501.07/1,219,391.24 = 300,836.78/x
  3. Step 3: Cross multiply
    813,501.07x = 1,219,391.24 × 300,836.78
  4. Step 4: Simplify right side
    813,501.07x = 366,837,728,104.85
  5. Step 5: Solve for x
    x = 366,837,728,104.85/813,501.07
  6. Step 6: Final answer
    x = 450,937.00

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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.