Home / 739,926.30-1,021,100.99-400,394.55

Finding the Fourth Proportional to 739,926.30, 1,021,100.99 and 400,394.55

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Solution

The fourth proportional to 739,926.30, 1,021,100.99 and 400,394.55 is: 552,545.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,926.30 : 1,021,100.99 = 400,394.55 : x
  2. Step 2: Convert to fraction form
    739,926.30/1,021,100.99 = 400,394.55/x
  3. Step 3: Cross multiply
    739,926.30x = 1,021,100.99 × 400,394.55
  4. Step 4: Simplify right side
    739,926.30x = 408,843,269,393.63
  5. Step 5: Solve for x
    x = 408,843,269,393.63/739,926.30
  6. Step 6: Final answer
    x = 552,545.94

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1.5x scale

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.