Home / 1,298,595.78-1,792,027.80-725,640.66

Finding the Fourth Proportional to 1,298,595.78, 1,792,027.80 and 725,640.66

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Solution

The fourth proportional to 1,298,595.78, 1,792,027.80 and 725,640.66 is: 1,001,364.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,595.78 : 1,792,027.80 = 725,640.66 : x
  2. Step 2: Convert to fraction form
    1,298,595.78/1,792,027.80 = 725,640.66/x
  3. Step 3: Cross multiply
    1,298,595.78x = 1,792,027.80 × 725,640.66
  4. Step 4: Simplify right side
    1,298,595.78x = 1,300,368,235,530.35
  5. Step 5: Solve for x
    x = 1,300,368,235,530.35/1,298,595.78
  6. Step 6: Final answer
    x = 1,001,364.90

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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.