Home / 680,077.80-1,019,241.90-413,555.40

Finding the Fourth Proportional to 680,077.80, 1,019,241.90 and 413,555.40

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Solution

The fourth proportional to 680,077.80, 1,019,241.90 and 413,555.40 is: 619,801.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,077.80 : 1,019,241.90 = 413,555.40 : x
  2. Step 2: Convert to fraction form
    680,077.80/1,019,241.90 = 413,555.40/x
  3. Step 3: Cross multiply
    680,077.80x = 1,019,241.90 × 413,555.40
  4. Step 4: Simplify right side
    680,077.80x = 421,512,991,651.26
  5. Step 5: Solve for x
    x = 421,512,991,651.26/680,077.80
  6. Step 6: Final answer
    x = 619,801.13

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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.