Home / 771,146.64-1,064,187.72-449,044.56

Finding the Fourth Proportional to 771,146.64, 1,064,187.72 and 449,044.56

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Solution

The fourth proportional to 771,146.64, 1,064,187.72 and 449,044.56 is: 619,684.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,146.64 : 1,064,187.72 = 449,044.56 : x
  2. Step 2: Convert to fraction form
    771,146.64/1,064,187.72 = 449,044.56/x
  3. Step 3: Cross multiply
    771,146.64x = 1,064,187.72 × 449,044.56
  4. Step 4: Simplify right side
    771,146.64x = 477,867,706,484.80
  5. Step 5: Solve for x
    x = 477,867,706,484.80/771,146.64
  6. Step 6: Final answer
    x = 619,684.61

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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.