Home / 641,323.10-961,350.15-303,770.45

Finding the Fourth Proportional to 641,323.10, 961,350.15 and 303,770.45

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Solution

The fourth proportional to 641,323.10, 961,350.15 and 303,770.45 is: 455,355.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,323.10 : 961,350.15 = 303,770.45 : x
  2. Step 2: Convert to fraction form
    641,323.10/961,350.15 = 303,770.45/x
  3. Step 3: Cross multiply
    641,323.10x = 961,350.15 × 303,770.45
  4. Step 4: Simplify right side
    641,323.10x = 292,029,767,673.07
  5. Step 5: Solve for x
    x = 292,029,767,673.07/641,323.10
  6. Step 6: Final answer
    x = 455,355.14

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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.