Home / 739,292.31-1,020,222.68-399,759.75

Finding the Fourth Proportional to 739,292.31, 1,020,222.68 and 399,759.75

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Solution

The fourth proportional to 739,292.31, 1,020,222.68 and 399,759.75 is: 551,668.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,292.31 : 1,020,222.68 = 399,759.75 : x
  2. Step 2: Convert to fraction form
    739,292.31/1,020,222.68 = 399,759.75/x
  3. Step 3: Cross multiply
    739,292.31x = 1,020,222.68 × 399,759.75
  4. Step 4: Simplify right side
    739,292.31x = 407,843,961,502.33
  5. Step 5: Solve for x
    x = 407,843,961,502.33/739,292.31
  6. Step 6: Final answer
    x = 551,668.07

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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.