Home / 1,521,407.81-2,099,608.39-842,344.31

Finding the Fourth Proportional to 1,521,407.81, 2,099,608.39 and 842,344.31

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Solution

The fourth proportional to 1,521,407.81, 2,099,608.39 and 842,344.31 is: 1,162,471.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,407.81 : 2,099,608.39 = 842,344.31 : x
  2. Step 2: Convert to fraction form
    1,521,407.81/2,099,608.39 = 842,344.31/x
  3. Step 3: Cross multiply
    1,521,407.81x = 2,099,608.39 × 842,344.31
  4. Step 4: Simplify right side
    1,521,407.81x = 1,768,593,186,846.71
  5. Step 5: Solve for x
    x = 1,768,593,186,846.71/1,521,407.81
  6. Step 6: Final answer
    x = 1,162,471.48

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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.