Home / 611,222.15-916,625.61-211,769.70

Finding the Fourth Proportional to 611,222.15, 916,625.61 and 211,769.70

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Solution

The fourth proportional to 611,222.15, 916,625.61 and 211,769.70 is: 317,582.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,222.15 : 916,625.61 = 211,769.70 : x
  2. Step 2: Convert to fraction form
    611,222.15/916,625.61 = 211,769.70/x
  3. Step 3: Cross multiply
    611,222.15x = 916,625.61 × 211,769.70
  4. Step 4: Simplify right side
    611,222.15x = 194,113,530,442.02
  5. Step 5: Solve for x
    x = 194,113,530,442.02/611,222.15
  6. Step 6: Final answer
    x = 317,582.62

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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.