Home / 641,945.04-885,873.30-355,458.97

Finding the Fourth Proportional to 641,945.04, 885,873.30 and 355,458.97

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Solution

The fourth proportional to 641,945.04, 885,873.30 and 355,458.97 is: 490,527.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,945.04 : 885,873.30 = 355,458.97 : x
  2. Step 2: Convert to fraction form
    641,945.04/885,873.30 = 355,458.97/x
  3. Step 3: Cross multiply
    641,945.04x = 885,873.30 × 355,458.97
  4. Step 4: Simplify right side
    641,945.04x = 314,891,611,875.84
  5. Step 5: Solve for x
    x = 314,891,611,875.84/641,945.04
  6. Step 6: Final answer
    x = 490,527.37

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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.