Home / 530,839.80-797,814.90-521,508.60

Finding the Fourth Proportional to 530,839.80, 797,814.90 and 521,508.60

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Solution

The fourth proportional to 530,839.80, 797,814.90 and 521,508.60 is: 783,790.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,839.80 : 797,814.90 = 521,508.60 : x
  2. Step 2: Convert to fraction form
    530,839.80/797,814.90 = 521,508.60/x
  3. Step 3: Cross multiply
    530,839.80x = 797,814.90 × 521,508.60
  4. Step 4: Simplify right side
    530,839.80x = 416,067,331,558.14
  5. Step 5: Solve for x
    x = 416,067,331,558.14/530,839.80
  6. Step 6: Final answer
    x = 783,790.76

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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.