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Finding the Fourth Proportional to 666,967.68, 1,000,448.24 and 161,528.65

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Solution

The fourth proportional to 666,967.68, 1,000,448.24 and 161,528.65 is: 242,292.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,967.68 : 1,000,448.24 = 161,528.65 : x
  2. Step 2: Convert to fraction form
    666,967.68/1,000,448.24 = 161,528.65/x
  3. Step 3: Cross multiply
    666,967.68x = 1,000,448.24 × 161,528.65
  4. Step 4: Simplify right side
    666,967.68x = 161,601,053,602.08
  5. Step 5: Solve for x
    x = 161,601,053,602.08/666,967.68
  6. Step 6: Final answer
    x = 242,292.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.