Home / 1,205,462.78-1,663,417.51-722,015.50

Finding the Fourth Proportional to 1,205,462.78, 1,663,417.51 and 722,015.50

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Solution

The fourth proportional to 1,205,462.78, 1,663,417.51 and 722,015.50 is: 996,308.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,462.78 : 1,663,417.51 = 722,015.50 : x
  2. Step 2: Convert to fraction form
    1,205,462.78/1,663,417.51 = 722,015.50/x
  3. Step 3: Cross multiply
    1,205,462.78x = 1,663,417.51 × 722,015.50
  4. Step 4: Simplify right side
    1,205,462.78x = 1,201,013,216,653.07
  5. Step 5: Solve for x
    x = 1,201,013,216,653.07/1,205,462.78
  6. Step 6: Final answer
    x = 996,308.83

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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.