Home / 811,711.40-1,216,626.01-305,948.52

Finding the Fourth Proportional to 811,711.40, 1,216,626.01 and 305,948.52

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Solution

The fourth proportional to 811,711.40, 1,216,626.01 and 305,948.52 is: 458,568.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,711.40 : 1,216,626.01 = 305,948.52 : x
  2. Step 2: Convert to fraction form
    811,711.40/1,216,626.01 = 305,948.52/x
  3. Step 3: Cross multiply
    811,711.40x = 1,216,626.01 × 305,948.52
  4. Step 4: Simplify right side
    811,711.40x = 372,224,926,388.13
  5. Step 5: Solve for x
    x = 372,224,926,388.13/811,711.40
  6. Step 6: Final answer
    x = 458,568.07

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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.