Home / 928,172.72-1,392,260.13-254,259.80

Finding the Fourth Proportional to 928,172.72, 1,392,260.13 and 254,259.80

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Solution

The fourth proportional to 928,172.72, 1,392,260.13 and 254,259.80 is: 381,389.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,172.72 : 1,392,260.13 = 254,259.80 : x
  2. Step 2: Convert to fraction form
    928,172.72/1,392,260.13 = 254,259.80/x
  3. Step 3: Cross multiply
    928,172.72x = 1,392,260.13 × 254,259.80
  4. Step 4: Simplify right side
    928,172.72x = 353,995,782,201.77
  5. Step 5: Solve for x
    x = 353,995,782,201.77/928,172.72
  6. Step 6: Final answer
    x = 381,389.99

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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.