Home / 331,887.20-496,518.60-288,001.40

Finding the Fourth Proportional to 331,887.20, 496,518.60 and 288,001.40

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Solution

The fourth proportional to 331,887.20, 496,518.60 and 288,001.40 is: 430,863.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,887.20 : 496,518.60 = 288,001.40 : x
  2. Step 2: Convert to fraction form
    331,887.20/496,518.60 = 288,001.40/x
  3. Step 3: Cross multiply
    331,887.20x = 496,518.60 × 288,001.40
  4. Step 4: Simplify right side
    331,887.20x = 142,998,051,926.04
  5. Step 5: Solve for x
    x = 142,998,051,926.04/331,887.20
  6. Step 6: Final answer
    x = 430,863.41

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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.