Home / 1,096,424.32-1,512,982.08-666,644.80

Finding the Fourth Proportional to 1,096,424.32, 1,512,982.08 and 666,644.80

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Solution

The fourth proportional to 1,096,424.32, 1,512,982.08 and 666,644.80 is: 919,919.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,096,424.32 : 1,512,982.08 = 666,644.80 : x
  2. Step 2: Convert to fraction form
    1,096,424.32/1,512,982.08 = 666,644.80/x
  3. Step 3: Cross multiply
    1,096,424.32x = 1,512,982.08 × 666,644.80
  4. Step 4: Simplify right side
    1,096,424.32x = 1,008,621,636,125.18
  5. Step 5: Solve for x
    x = 1,008,621,636,125.18/1,096,424.32
  6. Step 6: Final answer
    x = 919,919.07

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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.