Home / 546,546.30-821,569.05-389,859.90

Finding the Fourth Proportional to 546,546.30, 821,569.05 and 389,859.90

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Solution

The fourth proportional to 546,546.30, 821,569.05 and 389,859.90 is: 586,037.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,546.30 : 821,569.05 = 389,859.90 : x
  2. Step 2: Convert to fraction form
    546,546.30/821,569.05 = 389,859.90/x
  3. Step 3: Cross multiply
    546,546.30x = 821,569.05 × 389,859.90
  4. Step 4: Simplify right side
    546,546.30x = 320,296,827,676.10
  5. Step 5: Solve for x
    x = 320,296,827,676.10/546,546.30
  6. Step 6: Final answer
    x = 586,037.87

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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.