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Finding the Fourth Proportional to 666,125.00, 918,151.41 and 496,297.16

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Solution

The fourth proportional to 666,125.00, 918,151.41 and 496,297.16 is: 684,069.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,125.00 : 918,151.41 = 496,297.16 : x
  2. Step 2: Convert to fraction form
    666,125.00/918,151.41 = 496,297.16/x
  3. Step 3: Cross multiply
    666,125.00x = 918,151.41 × 496,297.16
  4. Step 4: Simplify right side
    666,125.00x = 455,675,930,160.75
  5. Step 5: Solve for x
    x = 455,675,930,160.75/666,125.00
  6. Step 6: Final answer
    x = 684,069.71

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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.