Home / 379,630.12-523,867.08-209,854.12

Finding the Fourth Proportional to 379,630.12, 523,867.08 and 209,854.12

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Solution

The fourth proportional to 379,630.12, 523,867.08 and 209,854.12 is: 289,586.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,630.12 : 523,867.08 = 209,854.12 : x
  2. Step 2: Convert to fraction form
    379,630.12/523,867.08 = 209,854.12/x
  3. Step 3: Cross multiply
    379,630.12x = 523,867.08 × 209,854.12
  4. Step 4: Simplify right side
    379,630.12x = 109,935,665,070.37
  5. Step 5: Solve for x
    x = 109,935,665,070.37/379,630.12
  6. Step 6: Final answer
    x = 289,586.26

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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.