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Finding the Fourth Proportional to 539,113.94, 743,965.35 and 297,396.71

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Solution

The fourth proportional to 539,113.94, 743,965.35 and 297,396.71 is: 410,400.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,113.94 : 743,965.35 = 297,396.71 : x
  2. Step 2: Convert to fraction form
    539,113.94/743,965.35 = 297,396.71/x
  3. Step 3: Cross multiply
    539,113.94x = 743,965.35 × 297,396.71
  4. Step 4: Simplify right side
    539,113.94x = 221,252,847,444.00
  5. Step 5: Solve for x
    x = 221,252,847,444.00/539,113.94
  6. Step 6: Final answer
    x = 410,400.90

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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.