Home / 867,494.72-1,196,869.92-485,460.80

Finding the Fourth Proportional to 867,494.72, 1,196,869.92 and 485,460.80

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Solution

The fourth proportional to 867,494.72, 1,196,869.92 and 485,460.80 is: 669,783.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,494.72 : 1,196,869.92 = 485,460.80 : x
  2. Step 2: Convert to fraction form
    867,494.72/1,196,869.92 = 485,460.80/x
  3. Step 3: Cross multiply
    867,494.72x = 1,196,869.92 × 485,460.80
  4. Step 4: Simplify right side
    867,494.72x = 581,033,428,859.14
  5. Step 5: Solve for x
    x = 581,033,428,859.14/867,494.72
  6. Step 6: Final answer
    x = 669,783.25

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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.