Home / 1,426,737.60-1,969,022.08-782,280.72

Finding the Fourth Proportional to 1,426,737.60, 1,969,022.08 and 782,280.72

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Solution

The fourth proportional to 1,426,737.60, 1,969,022.08 and 782,280.72 is: 1,079,615.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,737.60 : 1,969,022.08 = 782,280.72 : x
  2. Step 2: Convert to fraction form
    1,426,737.60/1,969,022.08 = 782,280.72/x
  3. Step 3: Cross multiply
    1,426,737.60x = 1,969,022.08 × 782,280.72
  4. Step 4: Simplify right side
    1,426,737.60x = 1,540,328,010,438.30
  5. Step 5: Solve for x
    x = 1,540,328,010,438.30/1,426,737.60
  6. Step 6: Final answer
    x = 1,079,615.49

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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.