Home / 771,708.43-1,064,965.05-427,551.58

Finding the Fourth Proportional to 771,708.43, 1,064,965.05 and 427,551.58

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Solution

The fourth proportional to 771,708.43, 1,064,965.05 and 427,551.58 is: 590,025.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,708.43 : 1,064,965.05 = 427,551.58 : x
  2. Step 2: Convert to fraction form
    771,708.43/1,064,965.05 = 427,551.58/x
  3. Step 3: Cross multiply
    771,708.43x = 1,064,965.05 × 427,551.58
  4. Step 4: Simplify right side
    771,708.43x = 455,327,489,772.28
  5. Step 5: Solve for x
    x = 455,327,489,772.28/771,708.43
  6. Step 6: Final answer
    x = 590,025.29

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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.