Home / 778,111.60-1,165,286.40-644,004.76

Finding the Fourth Proportional to 778,111.60, 1,165,286.40 and 644,004.76

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Solution

The fourth proportional to 778,111.60, 1,165,286.40 and 644,004.76 is: 964,450.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,111.60 : 1,165,286.40 = 644,004.76 : x
  2. Step 2: Convert to fraction form
    778,111.60/1,165,286.40 = 644,004.76/x
  3. Step 3: Cross multiply
    778,111.60x = 1,165,286.40 × 644,004.76
  4. Step 4: Simplify right side
    778,111.60x = 750,449,988,363.26
  5. Step 5: Solve for x
    x = 750,449,988,363.26/778,111.60
  6. Step 6: Final answer
    x = 964,450.33

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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.