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Finding the Fourth Proportional to 538,011.20, 804,943.20 and 351,387.20

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Solution

The fourth proportional to 538,011.20, 804,943.20 and 351,387.20 is: 525,726.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,011.20 : 804,943.20 = 351,387.20 : x
  2. Step 2: Convert to fraction form
    538,011.20/804,943.20 = 351,387.20/x
  3. Step 3: Cross multiply
    538,011.20x = 804,943.20 × 351,387.20
  4. Step 4: Simplify right side
    538,011.20x = 282,846,737,207.04
  5. Step 5: Solve for x
    x = 282,846,737,207.04/538,011.20
  6. Step 6: Final answer
    x = 525,726.49

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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.