Home / 711,769.87-1,067,654.81-312,414.10

Finding the Fourth Proportional to 711,769.87, 1,067,654.81 and 312,414.10

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Solution

The fourth proportional to 711,769.87, 1,067,654.81 and 312,414.10 is: 468,621.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,769.87 : 1,067,654.81 = 312,414.10 : x
  2. Step 2: Convert to fraction form
    711,769.87/1,067,654.81 = 312,414.10/x
  3. Step 3: Cross multiply
    711,769.87x = 1,067,654.81 × 312,414.10
  4. Step 4: Simplify right side
    711,769.87x = 333,550,416,576.82
  5. Step 5: Solve for x
    x = 333,550,416,576.82/711,769.87
  6. Step 6: Final answer
    x = 468,621.15

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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.