Home / 1,298,618.87-1,792,059.62-725,663.75

Finding the Fourth Proportional to 1,298,618.87, 1,792,059.62 and 725,663.75

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Solution

The fourth proportional to 1,298,618.87, 1,792,059.62 and 725,663.75 is: 1,001,396.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,618.87 : 1,792,059.62 = 725,663.75 : x
  2. Step 2: Convert to fraction form
    1,298,618.87/1,792,059.62 = 725,663.75/x
  3. Step 3: Cross multiply
    1,298,618.87x = 1,792,059.62 × 725,663.75
  4. Step 4: Simplify right side
    1,298,618.87x = 1,300,432,691,484.16
  5. Step 5: Solve for x
    x = 1,300,432,691,484.16/1,298,618.87
  6. Step 6: Final answer
    x = 1,001,396.74

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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.