Home / 690,857.20-1,036,285.80-241,428.70

Finding the Fourth Proportional to 690,857.20, 1,036,285.80 and 241,428.70

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Solution

The fourth proportional to 690,857.20, 1,036,285.80 and 241,428.70 is: 362,143.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,857.20 : 1,036,285.80 = 241,428.70 : x
  2. Step 2: Convert to fraction form
    690,857.20/1,036,285.80 = 241,428.70/x
  3. Step 3: Cross multiply
    690,857.20x = 1,036,285.80 × 241,428.70
  4. Step 4: Simplify right side
    690,857.20x = 250,189,133,522.46
  5. Step 5: Solve for x
    x = 250,189,133,522.46/690,857.20
  6. Step 6: Final answer
    x = 362,143.05

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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.