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Finding the Fourth Proportional to 397,612.87, 549,036.84 and 368,764.52

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Solution

The fourth proportional to 397,612.87, 549,036.84 and 368,764.52 is: 509,202.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,612.87 : 549,036.84 = 368,764.52 : x
  2. Step 2: Convert to fraction form
    397,612.87/549,036.84 = 368,764.52/x
  3. Step 3: Cross multiply
    397,612.87x = 549,036.84 × 368,764.52
  4. Step 4: Simplify right side
    397,612.87x = 202,465,305,402.60
  5. Step 5: Solve for x
    x = 202,465,305,402.60/397,612.87
  6. Step 6: Final answer
    x = 509,202.10

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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.