Home / 1,521,442.52-2,099,656.28-842,379

Finding the Fourth Proportional to 1,521,442.52, 2,099,656.28 and 842,379

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Solution

The fourth proportional to 1,521,442.52, 2,099,656.28 and 842,379 is: 1,162,519.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,442.52 : 2,099,656.28 = 842,379 : x
  2. Step 2: Convert to fraction form
    1,521,442.52/2,099,656.28 = 842,379/x
  3. Step 3: Cross multiply
    1,521,442.52x = 2,099,656.28 × 842,379
  4. Step 4: Simplify right side
    1,521,442.52x = 1,768,706,357,490.12
  5. Step 5: Solve for x
    x = 1,768,706,357,490.12/1,521,442.52
  6. Step 6: Final answer
    x = 1,162,519.34

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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.