Home / 739,109.40-1,108,664.10-418,932.60

Finding the Fourth Proportional to 739,109.40, 1,108,664.10 and 418,932.60

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Solution

The fourth proportional to 739,109.40, 1,108,664.10 and 418,932.60 is: 628,398.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,109.40 : 1,108,664.10 = 418,932.60 : x
  2. Step 2: Convert to fraction form
    739,109.40/1,108,664.10 = 418,932.60/x
  3. Step 3: Cross multiply
    739,109.40x = 1,108,664.10 × 418,932.60
  4. Step 4: Simplify right side
    739,109.40x = 464,455,533,939.66
  5. Step 5: Solve for x
    x = 464,455,533,939.66/739,109.40
  6. Step 6: Final answer
    x = 628,398.90

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1.5x scale

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.