Home / 378,826.02-522,778.86-209,058.93

Finding the Fourth Proportional to 378,826.02, 522,778.86 and 209,058.93

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Solution

The fourth proportional to 378,826.02, 522,778.86 and 209,058.93 is: 288,500.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,826.02 : 522,778.86 = 209,058.93 : x
  2. Step 2: Convert to fraction form
    378,826.02/522,778.86 = 209,058.93/x
  3. Step 3: Cross multiply
    378,826.02x = 522,778.86 × 209,058.93
  4. Step 4: Simplify right side
    378,826.02x = 109,291,589,098.22
  5. Step 5: Solve for x
    x = 109,291,589,098.22/378,826.02
  6. Step 6: Final answer
    x = 288,500.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.