Home / 651,709.20-976,786.20-272,629.20

Finding the Fourth Proportional to 651,709.20, 976,786.20 and 272,629.20

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Solution

The fourth proportional to 651,709.20, 976,786.20 and 272,629.20 is: 408,618.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,709.20 : 976,786.20 = 272,629.20 : x
  2. Step 2: Convert to fraction form
    651,709.20/976,786.20 = 272,629.20/x
  3. Step 3: Cross multiply
    651,709.20x = 976,786.20 × 272,629.20
  4. Step 4: Simplify right side
    651,709.20x = 266,300,440,277.04
  5. Step 5: Solve for x
    x = 266,300,440,277.04/651,709.20
  6. Step 6: Final answer
    x = 408,618.51

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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.