Home / 353,929.20-531,930.60-347,708.40

Finding the Fourth Proportional to 353,929.20, 531,930.60 and 347,708.40

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Solution

The fourth proportional to 353,929.20, 531,930.60 and 347,708.40 is: 522,581.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,929.20 : 531,930.60 = 347,708.40 : x
  2. Step 2: Convert to fraction form
    353,929.20/531,930.60 = 347,708.40/x
  3. Step 3: Cross multiply
    353,929.20x = 531,930.60 × 347,708.40
  4. Step 4: Simplify right side
    353,929.20x = 184,956,737,837.04
  5. Step 5: Solve for x
    x = 184,956,737,837.04/353,929.20
  6. Step 6: Final answer
    x = 522,581.18

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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.