Home / 379,646.16-523,922.88-209,891.52

Finding the Fourth Proportional to 379,646.16, 523,922.88 and 209,891.52

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Solution

The fourth proportional to 379,646.16, 523,922.88 and 209,891.52 is: 289,656.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,646.16 : 523,922.88 = 209,891.52 : x
  2. Step 2: Convert to fraction form
    379,646.16/523,922.88 = 209,891.52/x
  3. Step 3: Cross multiply
    379,646.16x = 523,922.88 × 209,891.52
  4. Step 4: Simplify right side
    379,646.16x = 109,966,969,645.98
  5. Step 5: Solve for x
    x = 109,966,969,645.98/379,646.16
  6. Step 6: Final answer
    x = 289,656.48

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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.