Home / 694,645.40-1,042,025.70-221,317.40

Finding the Fourth Proportional to 694,645.40, 1,042,025.70 and 221,317.40

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Solution

The fourth proportional to 694,645.40, 1,042,025.70 and 221,317.40 is: 331,994.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,645.40 : 1,042,025.70 = 221,317.40 : x
  2. Step 2: Convert to fraction form
    694,645.40/1,042,025.70 = 221,317.40/x
  3. Step 3: Cross multiply
    694,645.40x = 1,042,025.70 × 221,317.40
  4. Step 4: Simplify right side
    694,645.40x = 230,618,418,657.18
  5. Step 5: Solve for x
    x = 230,618,418,657.18/694,645.40
  6. Step 6: Final answer
    x = 331,994.45

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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.