Home / 538,518.74-743,146.20-293,505.69

Finding the Fourth Proportional to 538,518.74, 743,146.20 and 293,505.69

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Solution

The fourth proportional to 538,518.74, 743,146.20 and 293,505.69 is: 405,032.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,518.74 : 743,146.20 = 293,505.69 : x
  2. Step 2: Convert to fraction form
    538,518.74/743,146.20 = 293,505.69/x
  3. Step 3: Cross multiply
    538,518.74x = 743,146.20 × 293,505.69
  4. Step 4: Simplify right side
    538,518.74x = 218,117,638,201.88
  5. Step 5: Solve for x
    x = 218,117,638,201.88/538,518.74
  6. Step 6: Final answer
    x = 405,032.59

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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.