Home / 1,009,974.18-1,393,899.54-976,742.73

Finding the Fourth Proportional to 1,009,974.18, 1,393,899.54 and 976,742.73

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Solution

The fourth proportional to 1,009,974.18, 1,393,899.54 and 976,742.73 is: 1,348,035.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,974.18 : 1,393,899.54 = 976,742.73 : x
  2. Step 2: Convert to fraction form
    1,009,974.18/1,393,899.54 = 976,742.73/x
  3. Step 3: Cross multiply
    1,009,974.18x = 1,393,899.54 × 976,742.73
  4. Step 4: Simplify right side
    1,009,974.18x = 1,361,481,242,045.34
  5. Step 5: Solve for x
    x = 1,361,481,242,045.34/1,009,974.18
  6. Step 6: Final answer
    x = 1,348,035.69

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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.