Home / 490,256.20-734,861.10-279,440.20

Finding the Fourth Proportional to 490,256.20, 734,861.10 and 279,440.20

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Solution

The fourth proportional to 490,256.20, 734,861.10 and 279,440.20 is: 418,862.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,256.20 : 734,861.10 = 279,440.20 : x
  2. Step 2: Convert to fraction form
    490,256.20/734,861.10 = 279,440.20/x
  3. Step 3: Cross multiply
    490,256.20x = 734,861.10 × 279,440.20
  4. Step 4: Simplify right side
    490,256.20x = 205,349,732,756.22
  5. Step 5: Solve for x
    x = 205,349,732,756.22/490,256.20
  6. Step 6: Final answer
    x = 418,862.08

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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.