Home / 1,609,778.78-2,220,569.62-1,005,117.02

Finding the Fourth Proportional to 1,609,778.78, 2,220,569.62 and 1,005,117.02

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Solution

The fourth proportional to 1,609,778.78, 2,220,569.62 and 1,005,117.02 is: 1,386,483.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609,778.78 : 2,220,569.62 = 1,005,117.02 : x
  2. Step 2: Convert to fraction form
    1,609,778.78/2,220,569.62 = 1,005,117.02/x
  3. Step 3: Cross multiply
    1,609,778.78x = 2,220,569.62 × 1,005,117.02
  4. Step 4: Simplify right side
    1,609,778.78x = 2,231,932,319,156.93
  5. Step 5: Solve for x
    x = 2,231,932,319,156.93/1,609,778.78
  6. Step 6: Final answer
    x = 1,386,483.87

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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.