Home / 1,292,685.38-1,783,918.12-719,737.85

Finding the Fourth Proportional to 1,292,685.38, 1,783,918.12 and 719,737.85

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Solution

The fourth proportional to 1,292,685.38, 1,783,918.12 and 719,737.85 is: 993,245.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,685.38 : 1,783,918.12 = 719,737.85 : x
  2. Step 2: Convert to fraction form
    1,292,685.38/1,783,918.12 = 719,737.85/x
  3. Step 3: Cross multiply
    1,292,685.38x = 1,783,918.12 × 719,737.85
  4. Step 4: Simplify right side
    1,292,685.38x = 1,283,953,392,264.84
  5. Step 5: Solve for x
    x = 1,283,953,392,264.84/1,292,685.38
  6. Step 6: Final answer
    x = 993,245.08

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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.