Home / 1,117,511.78-1,675,655.30-442,909.76

Finding the Fourth Proportional to 1,117,511.78, 1,675,655.30 and 442,909.76

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Solution

The fourth proportional to 1,117,511.78, 1,675,655.30 and 442,909.76 is: 664,121.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,511.78 : 1,675,655.30 = 442,909.76 : x
  2. Step 2: Convert to fraction form
    1,117,511.78/1,675,655.30 = 442,909.76/x
  3. Step 3: Cross multiply
    1,117,511.78x = 1,675,655.30 × 442,909.76
  4. Step 4: Simplify right side
    1,117,511.78x = 742,164,079,494.73
  5. Step 5: Solve for x
    x = 742,164,079,494.73/1,117,511.78
  6. Step 6: Final answer
    x = 664,121.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.