Home / 739,299.06-1,020,231.90-399,766.50

Finding the Fourth Proportional to 739,299.06, 1,020,231.90 and 399,766.50

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Solution

The fourth proportional to 739,299.06, 1,020,231.90 and 399,766.50 is: 551,677.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,299.06 : 1,020,231.90 = 399,766.50 : x
  2. Step 2: Convert to fraction form
    739,299.06/1,020,231.90 = 399,766.50/x
  3. Step 3: Cross multiply
    739,299.06x = 1,020,231.90 × 399,766.50
  4. Step 4: Simplify right side
    739,299.06x = 407,854,535,851.35
  5. Step 5: Solve for x
    x = 407,854,535,851.35/739,299.06
  6. Step 6: Final answer
    x = 551,677.34

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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.