Home / 641,795.44-885,643.95-351,351.31

Finding the Fourth Proportional to 641,795.44, 885,643.95 and 351,351.31

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Solution

The fourth proportional to 641,795.44, 885,643.95 and 351,351.31 is: 484,846.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,795.44 : 885,643.95 = 351,351.31 : x
  2. Step 2: Convert to fraction form
    641,795.44/885,643.95 = 351,351.31/x
  3. Step 3: Cross multiply
    641,795.44x = 885,643.95 × 351,351.31
  4. Step 4: Simplify right side
    641,795.44x = 311,172,162,026.07
  5. Step 5: Solve for x
    x = 311,172,162,026.07/641,795.44
  6. Step 6: Final answer
    x = 484,846.33

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Double scale
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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.