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Finding the Fourth Proportional to 1,086,903, 1,499,972.99 and 603,468.21

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Solution

The fourth proportional to 1,086,903, 1,499,972.99 and 603,468.21 is: 832,812.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,903 : 1,499,972.99 = 603,468.21 : x
  2. Step 2: Convert to fraction form
    1,086,903/1,499,972.99 = 603,468.21/x
  3. Step 3: Cross multiply
    1,086,903x = 1,499,972.99 × 603,468.21
  4. Step 4: Simplify right side
    1,086,903x = 905,186,012,306.31
  5. Step 5: Solve for x
    x = 905,186,012,306.31/1,086,903
  6. Step 6: Final answer
    x = 832,812.14

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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.