Home / 840,387.15-1,260,585.34-209,300.96

Finding the Fourth Proportional to 840,387.15, 1,260,585.34 and 209,300.96

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Solution

The fourth proportional to 840,387.15, 1,260,585.34 and 209,300.96 is: 313,952.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,387.15 : 1,260,585.34 = 209,300.96 : x
  2. Step 2: Convert to fraction form
    840,387.15/1,260,585.34 = 209,300.96/x
  3. Step 3: Cross multiply
    840,387.15x = 1,260,585.34 × 209,300.96
  4. Step 4: Simplify right side
    840,387.15x = 263,841,724,452.14
  5. Step 5: Solve for x
    x = 263,841,724,452.14/840,387.15
  6. Step 6: Final answer
    x = 313,952.59

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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.