Home / 1,224,148.94-1,687,545.12-855,481.50

Finding the Fourth Proportional to 1,224,148.94, 1,687,545.12 and 855,481.50

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Solution

The fourth proportional to 1,224,148.94, 1,687,545.12 and 855,481.50 is: 1,179,320.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,148.94 : 1,687,545.12 = 855,481.50 : x
  2. Step 2: Convert to fraction form
    1,224,148.94/1,687,545.12 = 855,481.50/x
  3. Step 3: Cross multiply
    1,224,148.94x = 1,687,545.12 × 855,481.50
  4. Step 4: Simplify right side
    1,224,148.94x = 1,443,663,630,575.28
  5. Step 5: Solve for x
    x = 1,443,663,630,575.28/1,224,148.94
  6. Step 6: Final answer
    x = 1,179,320.25

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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.