Home / 379,584.60-523,826.88-209,818.68

Finding the Fourth Proportional to 379,584.60, 523,826.88 and 209,818.68

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Solution

The fourth proportional to 379,584.60, 523,826.88 and 209,818.68 is: 289,549.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,584.60 : 523,826.88 = 209,818.68 : x
  2. Step 2: Convert to fraction form
    379,584.60/523,826.88 = 209,818.68/x
  3. Step 3: Cross multiply
    379,584.60x = 523,826.88 × 209,818.68
  4. Step 4: Simplify right side
    379,584.60x = 109,908,664,510.12
  5. Step 5: Solve for x
    x = 109,908,664,510.12/379,584.60
  6. Step 6: Final answer
    x = 289,549.85

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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.