Home / 1,086,905.64-1,499,972.94-628,005

Finding the Fourth Proportional to 1,086,905.64, 1,499,972.94 and 628,005

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Solution

The fourth proportional to 1,086,905.64, 1,499,972.94 and 628,005 is: 866,671.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,905.64 : 1,499,972.94 = 628,005 : x
  2. Step 2: Convert to fraction form
    1,086,905.64/1,499,972.94 = 628,005/x
  3. Step 3: Cross multiply
    1,086,905.64x = 1,499,972.94 × 628,005
  4. Step 4: Simplify right side
    1,086,905.64x = 941,990,506,184.70
  5. Step 5: Solve for x
    x = 941,990,506,184.70/1,086,905.64
  6. Step 6: Final answer
    x = 866,671.84

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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.