Home / 1,426,933.76-1,969,158.18-782,343.32

Finding the Fourth Proportional to 1,426,933.76, 1,969,158.18 and 782,343.32

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Solution

The fourth proportional to 1,426,933.76, 1,969,158.18 and 782,343.32 is: 1,079,628.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,933.76 : 1,969,158.18 = 782,343.32 : x
  2. Step 2: Convert to fraction form
    1,426,933.76/1,969,158.18 = 782,343.32/x
  3. Step 3: Cross multiply
    1,426,933.76x = 1,969,158.18 × 782,343.32
  4. Step 4: Simplify right side
    1,426,933.76x = 1,540,557,748,146.36
  5. Step 5: Solve for x
    x = 1,540,557,748,146.36/1,426,933.76
  6. Step 6: Final answer
    x = 1,079,628.07

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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.