Home / 395,213.57-592,914.65-128,974.58

Finding the Fourth Proportional to 395,213.57, 592,914.65 and 128,974.58

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Solution

The fourth proportional to 395,213.57, 592,914.65 and 128,974.58 is: 193,492.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,213.57 : 592,914.65 = 128,974.58 : x
  2. Step 2: Convert to fraction form
    395,213.57/592,914.65 = 128,974.58/x
  3. Step 3: Cross multiply
    395,213.57x = 592,914.65 × 128,974.58
  4. Step 4: Simplify right side
    395,213.57x = 76,470,914,350.15
  5. Step 5: Solve for x
    x = 76,470,914,350.15/395,213.57
  6. Step 6: Final answer
    x = 193,492.64

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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.