Home / 789,037.20-1,182,778.20-389,739.60

Finding the Fourth Proportional to 789,037.20, 1,182,778.20 and 389,739.60

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Solution

The fourth proportional to 789,037.20, 1,182,778.20 and 389,739.60 is: 584,225.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,037.20 : 1,182,778.20 = 389,739.60 : x
  2. Step 2: Convert to fraction form
    789,037.20/1,182,778.20 = 389,739.60/x
  3. Step 3: Cross multiply
    789,037.20x = 1,182,778.20 × 389,739.60
  4. Step 4: Simplify right side
    789,037.20x = 460,975,502,556.72
  5. Step 5: Solve for x
    x = 460,975,502,556.72/789,037.20
  6. Step 6: Final answer
    x = 584,225.31

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Double scale
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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.