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Finding the Fourth Proportional to 539,426.98, 744,408.57 and 297,709.66

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Solution

The fourth proportional to 539,426.98, 744,408.57 and 297,709.66 is: 410,838.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,426.98 : 744,408.57 = 297,709.66 : x
  2. Step 2: Convert to fraction form
    539,426.98/744,408.57 = 297,709.66/x
  3. Step 3: Cross multiply
    539,426.98x = 744,408.57 × 297,709.66
  4. Step 4: Simplify right side
    539,426.98x = 221,617,622,275.79
  5. Step 5: Solve for x
    x = 221,617,622,275.79/539,426.98
  6. Step 6: Final answer
    x = 410,838.97

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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.