Home / 1,858,057.32-2,786,416.65-643,304.14

Finding the Fourth Proportional to 1,858,057.32, 2,786,416.65 and 643,304.14

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Solution

The fourth proportional to 1,858,057.32, 2,786,416.65 and 643,304.14 is: 964,724.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,858,057.32 : 2,786,416.65 = 643,304.14 : x
  2. Step 2: Convert to fraction form
    1,858,057.32/2,786,416.65 = 643,304.14/x
  3. Step 3: Cross multiply
    1,858,057.32x = 2,786,416.65 × 643,304.14
  4. Step 4: Simplify right side
    1,858,057.32x = 1,792,513,359,743.89
  5. Step 5: Solve for x
    x = 1,792,513,359,743.89/1,858,057.32
  6. Step 6: Final answer
    x = 964,724.47

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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.