Home / 1,205,283.64-1,663,311.84-661,470.03

Finding the Fourth Proportional to 1,205,283.64, 1,663,311.84 and 661,470.03

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Solution

The fourth proportional to 1,205,283.64, 1,663,311.84 and 661,470.03 is: 912,839.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,283.64 : 1,663,311.84 = 661,470.03 : x
  2. Step 2: Convert to fraction form
    1,205,283.64/1,663,311.84 = 661,470.03/x
  3. Step 3: Cross multiply
    1,205,283.64x = 1,663,311.84 × 661,470.03
  4. Step 4: Simplify right side
    1,205,283.64x = 1,100,230,932,704.16
  5. Step 5: Solve for x
    x = 1,100,230,932,704.16/1,205,283.64
  6. Step 6: Final answer
    x = 912,839.85

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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.