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Finding the Fourth Proportional to 771,650.96, 1,064,866.82 and 427,486.17

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Solution

The fourth proportional to 771,650.96, 1,064,866.82 and 427,486.17 is: 589,924.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,650.96 : 1,064,866.82 = 427,486.17 : x
  2. Step 2: Convert to fraction form
    771,650.96/1,064,866.82 = 427,486.17/x
  3. Step 3: Cross multiply
    771,650.96x = 1,064,866.82 × 427,486.17
  4. Step 4: Simplify right side
    771,650.96x = 455,215,836,304.45
  5. Step 5: Solve for x
    x = 455,215,836,304.45/771,650.96
  6. Step 6: Final answer
    x = 589,924.54

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1.5x scale

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.