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Finding the Fourth Proportional to 325,937.70, 488,906.55 and 286,539.30

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Solution

The fourth proportional to 325,937.70, 488,906.55 and 286,539.30 is: 429,808.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,937.70 : 488,906.55 = 286,539.30 : x
  2. Step 2: Convert to fraction form
    325,937.70/488,906.55 = 286,539.30/x
  3. Step 3: Cross multiply
    325,937.70x = 488,906.55 × 286,539.30
  4. Step 4: Simplify right side
    325,937.70x = 140,090,940,602.42
  5. Step 5: Solve for x
    x = 140,090,940,602.42/325,937.70
  6. Step 6: Final answer
    x = 429,808.95

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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.