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Finding the Fourth Proportional to 539,871.84, 745,024.32 and 298,149.96

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Solution

The fourth proportional to 539,871.84, 745,024.32 and 298,149.96 is: 411,447.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,871.84 : 745,024.32 = 298,149.96 : x
  2. Step 2: Convert to fraction form
    539,871.84/745,024.32 = 298,149.96/x
  3. Step 3: Cross multiply
    539,871.84x = 745,024.32 × 298,149.96
  4. Step 4: Simplify right side
    539,871.84x = 222,128,971,207.03
  5. Step 5: Solve for x
    x = 222,128,971,207.03/539,871.84
  6. Step 6: Final answer
    x = 411,447.60

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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.