Home / 663,117.04-994,869.60-213,828.79

Finding the Fourth Proportional to 663,117.04, 994,869.60 and 213,828.79

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Solution

The fourth proportional to 663,117.04, 994,869.60 and 213,828.79 is: 320,805.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,117.04 : 994,869.60 = 213,828.79 : x
  2. Step 2: Convert to fraction form
    663,117.04/994,869.60 = 213,828.79/x
  3. Step 3: Cross multiply
    663,117.04x = 994,869.60 × 213,828.79
  4. Step 4: Simplify right side
    663,117.04x = 212,731,762,775.78
  5. Step 5: Solve for x
    x = 212,731,762,775.78/663,117.04
  6. Step 6: Final answer
    x = 320,805.76

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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.