Home / 835,495.20-1,253,242.80-386,215.20

Finding the Fourth Proportional to 835,495.20, 1,253,242.80 and 386,215.20

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Solution

The fourth proportional to 835,495.20, 1,253,242.80 and 386,215.20 is: 579,322.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,495.20 : 1,253,242.80 = 386,215.20 : x
  2. Step 2: Convert to fraction form
    835,495.20/1,253,242.80 = 386,215.20/x
  3. Step 3: Cross multiply
    835,495.20x = 1,253,242.80 × 386,215.20
  4. Step 4: Simplify right side
    835,495.20x = 484,021,418,650.56
  5. Step 5: Solve for x
    x = 484,021,418,650.56/835,495.20
  6. Step 6: Final answer
    x = 579,322.80

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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.