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Finding the Fourth Proportional to 817,523.52, 1,128,204 and 454,971.84

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Solution

The fourth proportional to 817,523.52, 1,128,204 and 454,971.84 is: 627,873.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,523.52 : 1,128,204 = 454,971.84 : x
  2. Step 2: Convert to fraction form
    817,523.52/1,128,204 = 454,971.84/x
  3. Step 3: Cross multiply
    817,523.52x = 1,128,204 × 454,971.84
  4. Step 4: Simplify right side
    817,523.52x = 513,301,049,775.36
  5. Step 5: Solve for x
    x = 513,301,049,775.36/817,523.52
  6. Step 6: Final answer
    x = 627,873.13

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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.