Home / 925,709.80-1,387,643.10-426,202.60

Finding the Fourth Proportional to 925,709.80, 1,387,643.10 and 426,202.60

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Solution

The fourth proportional to 925,709.80, 1,387,643.10 and 426,202.60 is: 638,879.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,709.80 : 1,387,643.10 = 426,202.60 : x
  2. Step 2: Convert to fraction form
    925,709.80/1,387,643.10 = 426,202.60/x
  3. Step 3: Cross multiply
    925,709.80x = 1,387,643.10 × 426,202.60
  4. Step 4: Simplify right side
    925,709.80x = 591,417,097,092.06
  5. Step 5: Solve for x
    x = 591,417,097,092.06/925,709.80
  6. Step 6: Final answer
    x = 638,879.59

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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.