Home / 780,768.20-1,170,058.80-621,117.20

Finding the Fourth Proportional to 780,768.20, 1,170,058.80 and 621,117.20

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Solution

The fourth proportional to 780,768.20, 1,170,058.80 and 621,117.20 is: 930,805.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,768.20 : 1,170,058.80 = 621,117.20 : x
  2. Step 2: Convert to fraction form
    780,768.20/1,170,058.80 = 621,117.20/x
  3. Step 3: Cross multiply
    780,768.20x = 1,170,058.80 × 621,117.20
  4. Step 4: Simplify right side
    780,768.20x = 726,743,645,691.36
  5. Step 5: Solve for x
    x = 726,743,645,691.36/780,768.20
  6. Step 6: Final answer
    x = 930,805.90

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1.5x scale

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.