Home / 1,003,375.82-1,385,307.15-621,807.50

Finding the Fourth Proportional to 1,003,375.82, 1,385,307.15 and 621,807.50

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Solution

The fourth proportional to 1,003,375.82, 1,385,307.15 and 621,807.50 is: 858,496.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,003,375.82 : 1,385,307.15 = 621,807.50 : x
  2. Step 2: Convert to fraction form
    1,003,375.82/1,385,307.15 = 621,807.50/x
  3. Step 3: Cross multiply
    1,003,375.82x = 1,385,307.15 × 621,807.50
  4. Step 4: Simplify right side
    1,003,375.82x = 861,394,375,673.63
  5. Step 5: Solve for x
    x = 861,394,375,673.63/1,003,375.82
  6. Step 6: Final answer
    x = 858,496.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.