Home / 690,279.00-1,035,575.35-210,549.71

Finding the Fourth Proportional to 690,279.00, 1,035,575.35 and 210,549.71

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Solution

The fourth proportional to 690,279.00, 1,035,575.35 and 210,549.71 is: 315,872.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,279.00 : 1,035,575.35 = 210,549.71 : x
  2. Step 2: Convert to fraction form
    690,279.00/1,035,575.35 = 210,549.71/x
  3. Step 3: Cross multiply
    690,279.00x = 1,035,575.35 × 210,549.71
  4. Step 4: Simplify right side
    690,279.00x = 218,040,091,688.21
  5. Step 5: Solve for x
    x = 218,040,091,688.21/690,279.00
  6. Step 6: Final answer
    x = 315,872.41

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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.