Home / 695,920.80-1,043,881.20-663,261.60

Finding the Fourth Proportional to 695,920.80, 1,043,881.20 and 663,261.60

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Solution

The fourth proportional to 695,920.80, 1,043,881.20 and 663,261.60 is: 994,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,920.80 : 1,043,881.20 = 663,261.60 : x
  2. Step 2: Convert to fraction form
    695,920.80/1,043,881.20 = 663,261.60/x
  3. Step 3: Cross multiply
    695,920.80x = 1,043,881.20 × 663,261.60
  4. Step 4: Simplify right side
    695,920.80x = 692,366,314,921.92
  5. Step 5: Solve for x
    x = 692,366,314,921.92/695,920.80
  6. Step 6: Final answer
    x = 994,892.40

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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.