Home / 538,941.24-743,791.50-402,738.71

Finding the Fourth Proportional to 538,941.24, 743,791.50 and 402,738.71

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Solution

The fourth proportional to 538,941.24, 743,791.50 and 402,738.71 is: 555,818.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,941.24 : 743,791.50 = 402,738.71 : x
  2. Step 2: Convert to fraction form
    538,941.24/743,791.50 = 402,738.71/x
  3. Step 3: Cross multiply
    538,941.24x = 743,791.50 × 402,738.71
  4. Step 4: Simplify right side
    538,941.24x = 299,553,625,500.01
  5. Step 5: Solve for x
    x = 299,553,625,500.01/538,941.24
  6. Step 6: Final answer
    x = 555,818.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.