Home / 829,964.80-1,244,947.20-780,101.20

Finding the Fourth Proportional to 829,964.80, 1,244,947.20 and 780,101.20

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Solution

The fourth proportional to 829,964.80, 1,244,947.20 and 780,101.20 is: 1,170,151.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,964.80 : 1,244,947.20 = 780,101.20 : x
  2. Step 2: Convert to fraction form
    829,964.80/1,244,947.20 = 780,101.20/x
  3. Step 3: Cross multiply
    829,964.80x = 1,244,947.20 × 780,101.20
  4. Step 4: Simplify right side
    829,964.80x = 971,184,804,656.64
  5. Step 5: Solve for x
    x = 971,184,804,656.64/829,964.80
  6. Step 6: Final answer
    x = 1,170,151.80

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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.