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Finding the Fourth Proportional to 539,984.91, 745,164.90 and 298,262.29

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Solution

The fourth proportional to 539,984.91, 745,164.90 and 298,262.29 is: 411,594.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,984.91 : 745,164.90 = 298,262.29 : x
  2. Step 2: Convert to fraction form
    539,984.91/745,164.90 = 298,262.29/x
  3. Step 3: Cross multiply
    539,984.91x = 745,164.90 × 298,262.29
  4. Step 4: Simplify right side
    539,984.91x = 222,254,589,035.89
  5. Step 5: Solve for x
    x = 222,254,589,035.89/539,984.91
  6. Step 6: Final answer
    x = 411,594.08

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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.