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Finding the Fourth Proportional to 398,606.00, 549,737.84 and 336,819.20

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Solution

The fourth proportional to 398,606.00, 549,737.84 and 336,819.20 is: 464,524.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,606.00 : 549,737.84 = 336,819.20 : x
  2. Step 2: Convert to fraction form
    398,606.00/549,737.84 = 336,819.20/x
  3. Step 3: Cross multiply
    398,606.00x = 549,737.84 × 336,819.20
  4. Step 4: Simplify right side
    398,606.00x = 185,162,255,045.74
  5. Step 5: Solve for x
    x = 185,162,255,045.74/398,606.00
  6. Step 6: Final answer
    x = 464,524.51

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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.