Home / 739,504.04-1,020,514.68-399,971.48

Finding the Fourth Proportional to 739,504.04, 1,020,514.68 and 399,971.48

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Solution

The fourth proportional to 739,504.04, 1,020,514.68 and 399,971.48 is: 551,960.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,504.04 : 1,020,514.68 = 399,971.48 : x
  2. Step 2: Convert to fraction form
    739,504.04/1,020,514.68 = 399,971.48/x
  3. Step 3: Cross multiply
    739,504.04x = 1,020,514.68 × 399,971.48
  4. Step 4: Simplify right side
    739,504.04x = 408,176,766,921.33
  5. Step 5: Solve for x
    x = 408,176,766,921.33/739,504.04
  6. Step 6: Final answer
    x = 551,960.16

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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.