Home / 663,117.76-994,870.73-213,829.59

Finding the Fourth Proportional to 663,117.76, 994,870.73 and 213,829.59

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Solution

The fourth proportional to 663,117.76, 994,870.73 and 213,829.59 is: 320,806.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,117.76 : 994,870.73 = 213,829.59 : x
  2. Step 2: Convert to fraction form
    663,117.76/994,870.73 = 213,829.59/x
  3. Step 3: Cross multiply
    663,117.76x = 994,870.73 × 213,829.59
  4. Step 4: Simplify right side
    663,117.76x = 212,732,800,298.90
  5. Step 5: Solve for x
    x = 212,732,800,298.90/663,117.76
  6. Step 6: Final answer
    x = 320,806.97

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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.