Home / 821,321.29-1,133,411.32-458,750.44

Finding the Fourth Proportional to 821,321.29, 1,133,411.32 and 458,750.44

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Solution

The fourth proportional to 821,321.29, 1,133,411.32 and 458,750.44 is: 633,068.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,321.29 : 1,133,411.32 = 458,750.44 : x
  2. Step 2: Convert to fraction form
    821,321.29/1,133,411.32 = 458,750.44/x
  3. Step 3: Cross multiply
    821,321.29x = 1,133,411.32 × 458,750.44
  4. Step 4: Simplify right side
    821,321.29x = 519,952,944,854.40
  5. Step 5: Solve for x
    x = 519,952,944,854.40/821,321.29
  6. Step 6: Final answer
    x = 633,068.87

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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.