Home / 791,870.40-1,187,805.60-780,060.60

Finding the Fourth Proportional to 791,870.40, 1,187,805.60 and 780,060.60

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Solution

The fourth proportional to 791,870.40, 1,187,805.60 and 780,060.60 is: 1,170,090.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,870.40 : 1,187,805.60 = 780,060.60 : x
  2. Step 2: Convert to fraction form
    791,870.40/1,187,805.60 = 780,060.60/x
  3. Step 3: Cross multiply
    791,870.40x = 1,187,805.60 × 780,060.60
  4. Step 4: Simplify right side
    791,870.40x = 926,560,349,019.36
  5. Step 5: Solve for x
    x = 926,560,349,019.36/791,870.40
  6. Step 6: Final answer
    x = 1,170,090.90

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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.