Home / 1,247,804.70-1,871,707.05-680,934.30

Finding the Fourth Proportional to 1,247,804.70, 1,871,707.05 and 680,934.30

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Solution

The fourth proportional to 1,247,804.70, 1,871,707.05 and 680,934.30 is: 1,021,401.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,804.70 : 1,871,707.05 = 680,934.30 : x
  2. Step 2: Convert to fraction form
    1,247,804.70/1,871,707.05 = 680,934.30/x
  3. Step 3: Cross multiply
    1,247,804.70x = 1,871,707.05 × 680,934.30
  4. Step 4: Simplify right side
    1,247,804.70x = 1,274,509,529,896.82
  5. Step 5: Solve for x
    x = 1,274,509,529,896.82/1,247,804.70
  6. Step 6: Final answer
    x = 1,021,401.45

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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.