Home / 1,205,279.64-1,663,306.32-661,466.03

Finding the Fourth Proportional to 1,205,279.64, 1,663,306.32 and 661,466.03

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Solution

The fourth proportional to 1,205,279.64, 1,663,306.32 and 661,466.03 is: 912,834.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,279.64 : 1,663,306.32 = 661,466.03 : x
  2. Step 2: Convert to fraction form
    1,205,279.64/1,663,306.32 = 661,466.03/x
  3. Step 3: Cross multiply
    1,205,279.64x = 1,663,306.32 × 661,466.03
  4. Step 4: Simplify right side
    1,205,279.64x = 1,100,220,619,847.78
  5. Step 5: Solve for x
    x = 1,100,220,619,847.78/1,205,279.64
  6. Step 6: Final answer
    x = 912,834.32

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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.