Home / 690,090.30-1,035,135.45-216,774.90

Finding the Fourth Proportional to 690,090.30, 1,035,135.45 and 216,774.90

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Solution

The fourth proportional to 690,090.30, 1,035,135.45 and 216,774.90 is: 325,162.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,090.30 : 1,035,135.45 = 216,774.90 : x
  2. Step 2: Convert to fraction form
    690,090.30/1,035,135.45 = 216,774.90/x
  3. Step 3: Cross multiply
    690,090.30x = 1,035,135.45 × 216,774.90
  4. Step 4: Simplify right side
    690,090.30x = 224,391,383,660.21
  5. Step 5: Solve for x
    x = 224,391,383,660.21/690,090.30
  6. Step 6: Final answer
    x = 325,162.35

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Similar ratio
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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.