Home / 1,386,100.75-2,076,203.22-665,380

Finding the Fourth Proportional to 1,386,100.75, 2,076,203.22 and 665,380

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Solution

The fourth proportional to 1,386,100.75, 2,076,203.22 and 665,380 is: 996,654.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,100.75 : 2,076,203.22 = 665,380 : x
  2. Step 2: Convert to fraction form
    1,386,100.75/2,076,203.22 = 665,380/x
  3. Step 3: Cross multiply
    1,386,100.75x = 2,076,203.22 × 665,380
  4. Step 4: Simplify right side
    1,386,100.75x = 1,381,464,098,523.60
  5. Step 5: Solve for x
    x = 1,381,464,098,523.60/1,386,100.75
  6. Step 6: Final answer
    x = 996,654.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.