Home / 926,420.78-1,389,743.26-327,259.34

Finding the Fourth Proportional to 926,420.78, 1,389,743.26 and 327,259.34

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Solution

The fourth proportional to 926,420.78, 1,389,743.26 and 327,259.34 is: 490,928.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,420.78 : 1,389,743.26 = 327,259.34 : x
  2. Step 2: Convert to fraction form
    926,420.78/1,389,743.26 = 327,259.34/x
  3. Step 3: Cross multiply
    926,420.78x = 1,389,743.26 × 327,259.34
  4. Step 4: Simplify right side
    926,420.78x = 454,806,462,037.05
  5. Step 5: Solve for x
    x = 454,806,462,037.05/926,420.78
  6. Step 6: Final answer
    x = 490,928.61

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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.