Home / 821,310.78-1,133,385.84-458,724

Finding the Fourth Proportional to 821,310.78, 1,133,385.84 and 458,724

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Solution

The fourth proportional to 821,310.78, 1,133,385.84 and 458,724 is: 633,026.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,310.78 : 1,133,385.84 = 458,724 : x
  2. Step 2: Convert to fraction form
    821,310.78/1,133,385.84 = 458,724/x
  3. Step 3: Cross multiply
    821,310.78x = 1,133,385.84 × 458,724
  4. Step 4: Simplify right side
    821,310.78x = 519,911,286,068.16
  5. Step 5: Solve for x
    x = 519,911,286,068.16/821,310.78
  6. Step 6: Final answer
    x = 633,026.25

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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.