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Finding the Fourth Proportional to 701,019.69, 967,407.47 and 378,729.19

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Solution

The fourth proportional to 701,019.69, 967,407.47 and 378,729.19 is: 522,646.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,019.69 : 967,407.47 = 378,729.19 : x
  2. Step 2: Convert to fraction form
    701,019.69/967,407.47 = 378,729.19/x
  3. Step 3: Cross multiply
    701,019.69x = 967,407.47 × 378,729.19
  4. Step 4: Simplify right side
    701,019.69x = 366,385,447,513.05
  5. Step 5: Solve for x
    x = 366,385,447,513.05/701,019.69
  6. Step 6: Final answer
    x = 522,646.44

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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.