Home / 1,426,881.42-1,969,043.76-782,287.38

Finding the Fourth Proportional to 1,426,881.42, 1,969,043.76 and 782,287.38

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Solution

The fourth proportional to 1,426,881.42, 1,969,043.76 and 782,287.38 is: 1,079,527.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,881.42 : 1,969,043.76 = 782,287.38 : x
  2. Step 2: Convert to fraction form
    1,426,881.42/1,969,043.76 = 782,287.38/x
  3. Step 3: Cross multiply
    1,426,881.42x = 1,969,043.76 × 782,287.38
  4. Step 4: Simplify right side
    1,426,881.42x = 1,540,358,084,115.75
  5. Step 5: Solve for x
    x = 1,540,358,084,115.75/1,426,881.42
  6. Step 6: Final answer
    x = 1,079,527.75

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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.