Home / 872,570.97-1,204,132.07-485,384.49

Finding the Fourth Proportional to 872,570.97, 1,204,132.07 and 485,384.49

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Solution

The fourth proportional to 872,570.97, 1,204,132.07 and 485,384.49 is: 669,821.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,570.97 : 1,204,132.07 = 485,384.49 : x
  2. Step 2: Convert to fraction form
    872,570.97/1,204,132.07 = 485,384.49/x
  3. Step 3: Cross multiply
    872,570.97x = 1,204,132.07 × 485,384.49
  4. Step 4: Simplify right side
    872,570.97x = 584,467,028,262.67
  5. Step 5: Solve for x
    x = 584,467,028,262.67/872,570.97
  6. Step 6: Final answer
    x = 669,821.77

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1.5x scale

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.