Home / 739,146.07-1,020,021.66-399,614.23

Finding the Fourth Proportional to 739,146.07, 1,020,021.66 and 399,614.23

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Solution

The fourth proportional to 739,146.07, 1,020,021.66 and 399,614.23 is: 551,467.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,146.07 : 1,020,021.66 = 399,614.23 : x
  2. Step 2: Convert to fraction form
    739,146.07/1,020,021.66 = 399,614.23/x
  3. Step 3: Cross multiply
    739,146.07x = 1,020,021.66 × 399,614.23
  4. Step 4: Simplify right side
    739,146.07x = 407,615,168,246.15
  5. Step 5: Solve for x
    x = 407,615,168,246.15/739,146.07
  6. Step 6: Final answer
    x = 551,467.68

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Double scale
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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.