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Finding the Fourth Proportional to 539,278.98, 744,199.16 and 297,571.74

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Solution

The fourth proportional to 539,278.98, 744,199.16 and 297,571.74 is: 410,645.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,278.98 : 744,199.16 = 297,571.74 : x
  2. Step 2: Convert to fraction form
    539,278.98/744,199.16 = 297,571.74/x
  3. Step 3: Cross multiply
    539,278.98x = 744,199.16 × 297,571.74
  4. Step 4: Simplify right side
    539,278.98x = 221,452,637,459.88
  5. Step 5: Solve for x
    x = 221,452,637,459.88/539,278.98
  6. Step 6: Final answer
    x = 410,645.78

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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.