Home / 1,521,462.78-2,099,684.22-842,399.28

Finding the Fourth Proportional to 1,521,462.78, 2,099,684.22 and 842,399.28

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Solution

The fourth proportional to 1,521,462.78, 2,099,684.22 and 842,399.28 is: 1,162,547.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,462.78 : 2,099,684.22 = 842,399.28 : x
  2. Step 2: Convert to fraction form
    1,521,462.78/2,099,684.22 = 842,399.28/x
  3. Step 3: Cross multiply
    1,521,462.78x = 2,099,684.22 × 842,399.28
  4. Step 4: Simplify right side
    1,521,462.78x = 1,768,772,475,155.36
  5. Step 5: Solve for x
    x = 1,768,772,475,155.36/1,521,462.78
  6. Step 6: Final answer
    x = 1,162,547.32

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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.