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Finding the Fourth Proportional to 659,351.26, 910,082.15 and 387,601.26

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Solution

The fourth proportional to 659,351.26, 910,082.15 and 387,601.26 is: 534,994.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,351.26 : 910,082.15 = 387,601.26 : x
  2. Step 2: Convert to fraction form
    659,351.26/910,082.15 = 387,601.26/x
  3. Step 3: Cross multiply
    659,351.26x = 910,082.15 × 387,601.26
  4. Step 4: Simplify right side
    659,351.26x = 352,748,988,043.51
  5. Step 5: Solve for x
    x = 352,748,988,043.51/659,351.26
  6. Step 6: Final answer
    x = 534,994.03

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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.