Home / 990,815.96-1,367,334.06-538,110.20

Finding the Fourth Proportional to 990,815.96, 1,367,334.06 and 538,110.20

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Solution

The fourth proportional to 990,815.96, 1,367,334.06 and 538,110.20 is: 742,596.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,815.96 : 1,367,334.06 = 538,110.20 : x
  2. Step 2: Convert to fraction form
    990,815.96/1,367,334.06 = 538,110.20/x
  3. Step 3: Cross multiply
    990,815.96x = 1,367,334.06 × 538,110.20
  4. Step 4: Simplify right side
    990,815.96x = 735,776,404,493.41
  5. Step 5: Solve for x
    x = 735,776,404,493.41/990,815.96
  6. Step 6: Final answer
    x = 742,596.44

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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.