Home / 774,688.20-1,162,099.25-213,722.70

Finding the Fourth Proportional to 774,688.20, 1,162,099.25 and 213,722.70

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Solution

The fourth proportional to 774,688.20, 1,162,099.25 and 213,722.70 is: 320,602.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,688.20 : 1,162,099.25 = 213,722.70 : x
  2. Step 2: Convert to fraction form
    774,688.20/1,162,099.25 = 213,722.70/x
  3. Step 3: Cross multiply
    774,688.20x = 1,162,099.25 × 213,722.70
  4. Step 4: Simplify right side
    774,688.20x = 248,366,988,309.36
  5. Step 5: Solve for x
    x = 248,366,988,309.36/774,688.20
  6. Step 6: Final answer
    x = 320,602.52

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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.