Home / 643,819.54-888,464.54-357,332.26

Finding the Fourth Proportional to 643,819.54, 888,464.54 and 357,332.26

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Solution

The fourth proportional to 643,819.54, 888,464.54 and 357,332.26 is: 493,114.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,819.54 : 888,464.54 = 357,332.26 : x
  2. Step 2: Convert to fraction form
    643,819.54/888,464.54 = 357,332.26/x
  3. Step 3: Cross multiply
    643,819.54x = 888,464.54 × 357,332.26
  4. Step 4: Simplify right side
    643,819.54x = 317,477,042,008.06
  5. Step 5: Solve for x
    x = 317,477,042,008.06/643,819.54
  6. Step 6: Final answer
    x = 493,114.95

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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.