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Finding the Fourth Proportional to 379,068.08, 520,365.34 and 375,525.68

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Solution

The fourth proportional to 379,068.08, 520,365.34 and 375,525.68 is: 515,502.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,068.08 : 520,365.34 = 375,525.68 : x
  2. Step 2: Convert to fraction form
    379,068.08/520,365.34 = 375,525.68/x
  3. Step 3: Cross multiply
    379,068.08x = 520,365.34 × 375,525.68
  4. Step 4: Simplify right side
    379,068.08x = 195,410,548,151.93
  5. Step 5: Solve for x
    x = 195,410,548,151.93/379,068.08
  6. Step 6: Final answer
    x = 515,502.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.