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Finding the Fourth Proportional to 821,371.04, 1,133,480 and 458,800.32

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Solution

The fourth proportional to 821,371.04, 1,133,480 and 458,800.32 is: 633,137.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,371.04 : 1,133,480 = 458,800.32 : x
  2. Step 2: Convert to fraction form
    821,371.04/1,133,480 = 458,800.32/x
  3. Step 3: Cross multiply
    821,371.04x = 1,133,480 × 458,800.32
  4. Step 4: Simplify right side
    821,371.04x = 520,040,986,713.60
  5. Step 5: Solve for x
    x = 520,040,986,713.60/821,371.04
  6. Step 6: Final answer
    x = 633,137.72

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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.