Home / 1,298,715.05-1,792,221.54-725,755.07

Finding the Fourth Proportional to 1,298,715.05, 1,792,221.54 and 725,755.07

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Solution

The fourth proportional to 1,298,715.05, 1,792,221.54 and 725,755.07 is: 1,001,539.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,715.05 : 1,792,221.54 = 725,755.07 : x
  2. Step 2: Convert to fraction form
    1,298,715.05/1,792,221.54 = 725,755.07/x
  3. Step 3: Cross multiply
    1,298,715.05x = 1,792,221.54 × 725,755.07
  4. Step 4: Simplify right side
    1,298,715.05x = 1,300,713,869,218.21
  5. Step 5: Solve for x
    x = 1,300,713,869,218.21/1,298,715.05
  6. Step 6: Final answer
    x = 1,001,539.07

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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.