Home / 642,302.04-962,849.55-215,538.56

Finding the Fourth Proportional to 642,302.04, 962,849.55 and 215,538.56

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Solution

The fourth proportional to 642,302.04, 962,849.55 and 215,538.56 is: 323,105.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,302.04 : 962,849.55 = 215,538.56 : x
  2. Step 2: Convert to fraction form
    642,302.04/962,849.55 = 215,538.56/x
  3. Step 3: Cross multiply
    642,302.04x = 962,849.55 × 215,538.56
  4. Step 4: Simplify right side
    642,302.04x = 207,531,210,524.38
  5. Step 5: Solve for x
    x = 207,531,210,524.38/642,302.04
  6. Step 6: Final answer
    x = 323,105.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.