Home / 1,386,826.48-1,913,250.62-842,874.64

Finding the Fourth Proportional to 1,386,826.48, 1,913,250.62 and 842,874.64

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Solution

The fourth proportional to 1,386,826.48, 1,913,250.62 and 842,874.64 is: 1,162,820.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,826.48 : 1,913,250.62 = 842,874.64 : x
  2. Step 2: Convert to fraction form
    1,386,826.48/1,913,250.62 = 842,874.64/x
  3. Step 3: Cross multiply
    1,386,826.48x = 1,913,250.62 × 842,874.64
  4. Step 4: Simplify right side
    1,386,826.48x = 1,612,630,427,562.28
  5. Step 5: Solve for x
    x = 1,612,630,427,562.28/1,386,826.48
  6. Step 6: Final answer
    x = 1,162,820.62

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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.