Home / 690,090.60-1,035,168.30-216,791.40

Finding the Fourth Proportional to 690,090.60, 1,035,168.30 and 216,791.40

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Solution

The fourth proportional to 690,090.60, 1,035,168.30 and 216,791.40 is: 325,197.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,090.60 : 1,035,168.30 = 216,791.40 : x
  2. Step 2: Convert to fraction form
    690,090.60/1,035,168.30 = 216,791.40/x
  3. Step 3: Cross multiply
    690,090.60x = 1,035,168.30 × 216,791.40
  4. Step 4: Simplify right side
    690,090.60x = 224,415,584,992.62
  5. Step 5: Solve for x
    x = 224,415,584,992.62/690,090.60
  6. Step 6: Final answer
    x = 325,197.28

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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.