Home / 1,288,677.14-1,932,865.59-342,121.40

Finding the Fourth Proportional to 1,288,677.14, 1,932,865.59 and 342,121.40

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Solution

The fourth proportional to 1,288,677.14, 1,932,865.59 and 342,121.40 is: 513,142.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,677.14 : 1,932,865.59 = 342,121.40 : x
  2. Step 2: Convert to fraction form
    1,288,677.14/1,932,865.59 = 342,121.40/x
  3. Step 3: Cross multiply
    1,288,677.14x = 1,932,865.59 × 342,121.40
  4. Step 4: Simplify right side
    1,288,677.14x = 661,274,681,662.63
  5. Step 5: Solve for x
    x = 661,274,681,662.63/1,288,677.14
  6. Step 6: Final answer
    x = 513,142.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.