Home / 1,570,003.20-2,166,480.90-890,939.70

Finding the Fourth Proportional to 1,570,003.20, 2,166,480.90 and 890,939.70

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Solution

The fourth proportional to 1,570,003.20, 2,166,480.90 and 890,939.70 is: 1,229,426.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570,003.20 : 2,166,480.90 = 890,939.70 : x
  2. Step 2: Convert to fraction form
    1,570,003.20/2,166,480.90 = 890,939.70/x
  3. Step 3: Cross multiply
    1,570,003.20x = 2,166,480.90 × 890,939.70
  4. Step 4: Simplify right side
    1,570,003.20x = 1,930,203,843,101.73
  5. Step 5: Solve for x
    x = 1,930,203,843,101.73/1,570,003.20
  6. Step 6: Final answer
    x = 1,229,426.69

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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.