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Finding the Fourth Proportional to 666,626.76, 1,000,133.78 and 240,154.47

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Solution

The fourth proportional to 666,626.76, 1,000,133.78 and 240,154.47 is: 360,301.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,626.76 : 1,000,133.78 = 240,154.47 : x
  2. Step 2: Convert to fraction form
    666,626.76/1,000,133.78 = 240,154.47/x
  3. Step 3: Cross multiply
    666,626.76x = 1,000,133.78 × 240,154.47
  4. Step 4: Simplify right side
    666,626.76x = 240,186,598,015.09
  5. Step 5: Solve for x
    x = 240,186,598,015.09/666,626.76
  6. Step 6: Final answer
    x = 360,301.46

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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.