Home / 774,430.40-1,161,703.20-275,729.60

Finding the Fourth Proportional to 774,430.40, 1,161,703.20 and 275,729.60

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Solution

The fourth proportional to 774,430.40, 1,161,703.20 and 275,729.60 is: 413,614.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,430.40 : 1,161,703.20 = 275,729.60 : x
  2. Step 2: Convert to fraction form
    774,430.40/1,161,703.20 = 275,729.60/x
  3. Step 3: Cross multiply
    774,430.40x = 1,161,703.20 × 275,729.60
  4. Step 4: Simplify right side
    774,430.40x = 320,315,958,654.72
  5. Step 5: Solve for x
    x = 320,315,958,654.72/774,430.40
  6. Step 6: Final answer
    x = 413,614.91

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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.