Home / 1,021,271.50-1,531,769.35-422,149.53

Finding the Fourth Proportional to 1,021,271.50, 1,531,769.35 and 422,149.53

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Solution

The fourth proportional to 1,021,271.50, 1,531,769.35 and 422,149.53 is: 633,167.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,271.50 : 1,531,769.35 = 422,149.53 : x
  2. Step 2: Convert to fraction form
    1,021,271.50/1,531,769.35 = 422,149.53/x
  3. Step 3: Cross multiply
    1,021,271.50x = 1,531,769.35 × 422,149.53
  4. Step 4: Simplify right side
    1,021,271.50x = 646,635,711,170.91
  5. Step 5: Solve for x
    x = 646,635,711,170.91/1,021,271.50
  6. Step 6: Final answer
    x = 633,167.29

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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.