Home / 1,278,085.70-1,915,670.76-798,534

Finding the Fourth Proportional to 1,278,085.70, 1,915,670.76 and 798,534

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Solution

The fourth proportional to 1,278,085.70, 1,915,670.76 and 798,534 is: 1,196,890.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,085.70 : 1,915,670.76 = 798,534 : x
  2. Step 2: Convert to fraction form
    1,278,085.70/1,915,670.76 = 798,534/x
  3. Step 3: Cross multiply
    1,278,085.70x = 1,915,670.76 × 798,534
  4. Step 4: Simplify right side
    1,278,085.70x = 1,529,728,234,665.84
  5. Step 5: Solve for x
    x = 1,529,728,234,665.84/1,278,085.70
  6. Step 6: Final answer
    x = 1,196,890.19

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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.