Home / 1,086,420.60-1,629,630.90-806,484.60

Finding the Fourth Proportional to 1,086,420.60, 1,629,630.90 and 806,484.60

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Solution

The fourth proportional to 1,086,420.60, 1,629,630.90 and 806,484.60 is: 1,209,726.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,420.60 : 1,629,630.90 = 806,484.60 : x
  2. Step 2: Convert to fraction form
    1,086,420.60/1,629,630.90 = 806,484.60/x
  3. Step 3: Cross multiply
    1,086,420.60x = 1,629,630.90 × 806,484.60
  4. Step 4: Simplify right side
    1,086,420.60x = 1,314,272,224,534.14
  5. Step 5: Solve for x
    x = 1,314,272,224,534.14/1,086,420.60
  6. Step 6: Final answer
    x = 1,209,726.90

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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.