Home / 663,123.03-994,878.60-213,834.79

Finding the Fourth Proportional to 663,123.03, 994,878.60 and 213,834.79

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Solution

The fourth proportional to 663,123.03, 994,878.60 and 213,834.79 is: 320,814.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,123.03 : 994,878.60 = 213,834.79 : x
  2. Step 2: Convert to fraction form
    663,123.03/994,878.60 = 213,834.79/x
  3. Step 3: Cross multiply
    663,123.03x = 994,878.60 × 213,834.79
  4. Step 4: Simplify right side
    663,123.03x = 212,739,656,506.49
  5. Step 5: Solve for x
    x = 212,739,656,506.49/663,123.03
  6. Step 6: Final answer
    x = 320,814.76

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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.