Home / 1,287,372.46-1,776,634.60-714,417.34

Finding the Fourth Proportional to 1,287,372.46, 1,776,634.60 and 714,417.34

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Solution

The fourth proportional to 1,287,372.46, 1,776,634.60 and 714,417.34 is: 985,929.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,372.46 : 1,776,634.60 = 714,417.34 : x
  2. Step 2: Convert to fraction form
    1,287,372.46/1,776,634.60 = 714,417.34/x
  3. Step 3: Cross multiply
    1,287,372.46x = 1,776,634.60 × 714,417.34
  4. Step 4: Simplify right side
    1,287,372.46x = 1,269,258,565,083.96
  5. Step 5: Solve for x
    x = 1,269,258,565,083.96/1,287,372.46
  6. Step 6: Final answer
    x = 985,929.56

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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.