Home / 817,575.79-1,128,245.81-454,993.53

Finding the Fourth Proportional to 817,575.79, 1,128,245.81 and 454,993.53

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Solution

The fourth proportional to 817,575.79, 1,128,245.81 and 454,993.53 is: 627,886.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,575.79 : 1,128,245.81 = 454,993.53 : x
  2. Step 2: Convert to fraction form
    817,575.79/1,128,245.81 = 454,993.53/x
  3. Step 3: Cross multiply
    817,575.79x = 1,128,245.81 × 454,993.53
  4. Step 4: Simplify right side
    817,575.79x = 513,344,541,524.64
  5. Step 5: Solve for x
    x = 513,344,541,524.64/817,575.79
  6. Step 6: Final answer
    x = 627,886.18

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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.