Home / 546,780.20-821,045.10-413,810.60

Finding the Fourth Proportional to 546,780.20, 821,045.10 and 413,810.60

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Solution

The fourth proportional to 546,780.20, 821,045.10 and 413,810.60 is: 621,377.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,780.20 : 821,045.10 = 413,810.60 : x
  2. Step 2: Convert to fraction form
    546,780.20/821,045.10 = 413,810.60/x
  3. Step 3: Cross multiply
    546,780.20x = 821,045.10 × 413,810.60
  4. Step 4: Simplify right side
    546,780.20x = 339,757,165,458.06
  5. Step 5: Solve for x
    x = 339,757,165,458.06/546,780.20
  6. Step 6: Final answer
    x = 621,377.96

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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.