Home / 990,845.82-1,367,374.32-538,136.82

Finding the Fourth Proportional to 990,845.82, 1,367,374.32 and 538,136.82

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Solution

The fourth proportional to 990,845.82, 1,367,374.32 and 538,136.82 is: 742,632.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,845.82 : 1,367,374.32 = 538,136.82 : x
  2. Step 2: Convert to fraction form
    990,845.82/1,367,374.32 = 538,136.82/x
  3. Step 3: Cross multiply
    990,845.82x = 1,367,374.32 × 538,136.82
  4. Step 4: Simplify right side
    990,845.82x = 735,834,468,314.46
  5. Step 5: Solve for x
    x = 735,834,468,314.46/990,845.82
  6. Step 6: Final answer
    x = 742,632.66

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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.