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Finding the Fourth Proportional to 539,358.35, 744,313.79 and 297,640.91

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Solution

The fourth proportional to 539,358.35, 744,313.79 and 297,640.91 is: 410,744.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,358.35 : 744,313.79 = 297,640.91 : x
  2. Step 2: Convert to fraction form
    539,358.35/744,313.79 = 297,640.91/x
  3. Step 3: Cross multiply
    539,358.35x = 744,313.79 × 297,640.91
  4. Step 4: Simplify right side
    539,358.35x = 221,538,236,386.04
  5. Step 5: Solve for x
    x = 221,538,236,386.04/539,358.35
  6. Step 6: Final answer
    x = 410,744.06

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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.