Home / 629,770.90-944,309.67-430,316.50

Finding the Fourth Proportional to 629,770.90, 944,309.67 and 430,316.50

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Solution

The fourth proportional to 629,770.90, 944,309.67 and 430,316.50 is: 645,237.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,770.90 : 944,309.67 = 430,316.50 : x
  2. Step 2: Convert to fraction form
    629,770.90/944,309.67 = 430,316.50/x
  3. Step 3: Cross multiply
    629,770.90x = 944,309.67 × 430,316.50
  4. Step 4: Simplify right side
    629,770.90x = 406,352,032,110.56
  5. Step 5: Solve for x
    x = 406,352,032,110.56/629,770.90
  6. Step 6: Final answer
    x = 645,237.87

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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.