Home / 690,719.64-1,036,219.60-217,294.90

Finding the Fourth Proportional to 690,719.64, 1,036,219.60 and 217,294.90

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Solution

The fourth proportional to 690,719.64, 1,036,219.60 and 217,294.90 is: 325,986.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,719.64 : 1,036,219.60 = 217,294.90 : x
  2. Step 2: Convert to fraction form
    690,719.64/1,036,219.60 = 217,294.90/x
  3. Step 3: Cross multiply
    690,719.64x = 1,036,219.60 × 217,294.90
  4. Step 4: Simplify right side
    690,719.64x = 225,165,234,360.04
  5. Step 5: Solve for x
    x = 225,165,234,360.04/690,719.64
  6. Step 6: Final answer
    x = 325,986.44

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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.