Home / 538,963.06-743,581.18-345,477.43

Finding the Fourth Proportional to 538,963.06, 743,581.18 and 345,477.43

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Solution

The fourth proportional to 538,963.06, 743,581.18 and 345,477.43 is: 476,638.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,963.06 : 743,581.18 = 345,477.43 : x
  2. Step 2: Convert to fraction form
    538,963.06/743,581.18 = 345,477.43/x
  3. Step 3: Cross multiply
    538,963.06x = 743,581.18 × 345,477.43
  4. Step 4: Simplify right side
    538,963.06x = 256,890,514,846.84
  5. Step 5: Solve for x
    x = 256,890,514,846.84/538,963.06
  6. Step 6: Final answer
    x = 476,638.45

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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.