Home / 753,870.43-1,040,323.66-409,698.19

Finding the Fourth Proportional to 753,870.43, 1,040,323.66 and 409,698.19

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Solution

The fourth proportional to 753,870.43, 1,040,323.66 and 409,698.19 is: 565,373.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,870.43 : 1,040,323.66 = 409,698.19 : x
  2. Step 2: Convert to fraction form
    753,870.43/1,040,323.66 = 409,698.19/x
  3. Step 3: Cross multiply
    753,870.43x = 1,040,323.66 × 409,698.19
  4. Step 4: Simplify right side
    753,870.43x = 426,218,720,516.18
  5. Step 5: Solve for x
    x = 426,218,720,516.18/753,870.43
  6. Step 6: Final answer
    x = 565,373.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.