Home / 395,210.76-591,438-323,302.20

Finding the Fourth Proportional to 395,210.76, 591,438 and 323,302.20

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Solution

The fourth proportional to 395,210.76, 591,438 and 323,302.20 is: 483,825.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,210.76 : 591,438 = 323,302.20 : x
  2. Step 2: Convert to fraction form
    395,210.76/591,438 = 323,302.20/x
  3. Step 3: Cross multiply
    395,210.76x = 591,438 × 323,302.20
  4. Step 4: Simplify right side
    395,210.76x = 191,213,206,563.60
  5. Step 5: Solve for x
    x = 191,213,206,563.60/395,210.76
  6. Step 6: Final answer
    x = 483,825.91

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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.