Home / 811,040.75-1,119,224.59-448,456.65

Finding the Fourth Proportional to 811,040.75, 1,119,224.59 and 448,456.65

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Solution

The fourth proportional to 811,040.75, 1,119,224.59 and 448,456.65 is: 618,863.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,040.75 : 1,119,224.59 = 448,456.65 : x
  2. Step 2: Convert to fraction form
    811,040.75/1,119,224.59 = 448,456.65/x
  3. Step 3: Cross multiply
    811,040.75x = 1,119,224.59 × 448,456.65
  4. Step 4: Simplify right side
    811,040.75x = 501,923,711,206.43
  5. Step 5: Solve for x
    x = 501,923,711,206.43/811,040.75
  6. Step 6: Final answer
    x = 618,863.74

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Double scale
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1.5x scale

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.