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Finding the Fourth Proportional to 539,029.80, 743,864.67 and 297,318.93

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Solution

The fourth proportional to 539,029.80, 743,864.67 and 297,318.93 is: 410,302.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,029.80 : 743,864.67 = 297,318.93 : x
  2. Step 2: Convert to fraction form
    539,029.80/743,864.67 = 297,318.93/x
  3. Step 3: Cross multiply
    539,029.80x = 743,864.67 × 297,318.93
  4. Step 4: Simplify right side
    539,029.80x = 221,165,047,749.20
  5. Step 5: Solve for x
    x = 221,165,047,749.20/539,029.80
  6. Step 6: Final answer
    x = 410,302.08

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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.