Home / 806,548.60-1,209,822.90-386,644.60

Finding the Fourth Proportional to 806,548.60, 1,209,822.90 and 386,644.60

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Solution

The fourth proportional to 806,548.60, 1,209,822.90 and 386,644.60 is: 579,966.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,548.60 : 1,209,822.90 = 386,644.60 : x
  2. Step 2: Convert to fraction form
    806,548.60/1,209,822.90 = 386,644.60/x
  3. Step 3: Cross multiply
    806,548.60x = 1,209,822.90 × 386,644.60
  4. Step 4: Simplify right side
    806,548.60x = 467,771,491,241.34
  5. Step 5: Solve for x
    x = 467,771,491,241.34/806,548.60
  6. Step 6: Final answer
    x = 579,966.90

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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.