Home / 809,318.40-1,214,139.60-240,698.40

Finding the Fourth Proportional to 809,318.40, 1,214,139.60 and 240,698.40

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Solution

The fourth proportional to 809,318.40, 1,214,139.60 and 240,698.40 is: 361,095.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,318.40 : 1,214,139.60 = 240,698.40 : x
  2. Step 2: Convert to fraction form
    809,318.40/1,214,139.60 = 240,698.40/x
  3. Step 3: Cross multiply
    809,318.40x = 1,214,139.60 × 240,698.40
  4. Step 4: Simplify right side
    809,318.40x = 292,241,459,096.64
  5. Step 5: Solve for x
    x = 292,241,459,096.64/809,318.40
  6. Step 6: Final answer
    x = 361,095.78

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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.