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Finding the Fourth Proportional to 661,052.68, 906,311.61 and 649,095.26

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Solution

The fourth proportional to 661,052.68, 906,311.61 and 649,095.26 is: 889,917.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,052.68 : 906,311.61 = 649,095.26 : x
  2. Step 2: Convert to fraction form
    661,052.68/906,311.61 = 649,095.26/x
  3. Step 3: Cross multiply
    661,052.68x = 906,311.61 × 649,095.26
  4. Step 4: Simplify right side
    661,052.68x = 588,282,565,602.41
  5. Step 5: Solve for x
    x = 588,282,565,602.41/661,052.68
  6. Step 6: Final answer
    x = 889,917.83

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.