Home / 791,420.40-1,188,005.40-492,238.80

Finding the Fourth Proportional to 791,420.40, 1,188,005.40 and 492,238.80

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Solution

The fourth proportional to 791,420.40, 1,188,005.40 and 492,238.80 is: 738,902.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,420.40 : 1,188,005.40 = 492,238.80 : x
  2. Step 2: Convert to fraction form
    791,420.40/1,188,005.40 = 492,238.80/x
  3. Step 3: Cross multiply
    791,420.40x = 1,188,005.40 × 492,238.80
  4. Step 4: Simplify right side
    791,420.40x = 584,782,352,489.52
  5. Step 5: Solve for x
    x = 584,782,352,489.52/791,420.40
  6. Step 6: Final answer
    x = 738,902.30

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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.