Home / 759,393.68-1,138,739.90-279,500.94

Finding the Fourth Proportional to 759,393.68, 1,138,739.90 and 279,500.94

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Solution

The fourth proportional to 759,393.68, 1,138,739.90 and 279,500.94 is: 419,122.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,393.68 : 1,138,739.90 = 279,500.94 : x
  2. Step 2: Convert to fraction form
    759,393.68/1,138,739.90 = 279,500.94/x
  3. Step 3: Cross multiply
    759,393.68x = 1,138,739.90 × 279,500.94
  4. Step 4: Simplify right side
    759,393.68x = 318,278,872,465.51
  5. Step 5: Solve for x
    x = 318,278,872,465.51/759,393.68
  6. Step 6: Final answer
    x = 419,122.36

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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.