Home / 1,272,863.70-1,756,114.83-789,254.82

Finding the Fourth Proportional to 1,272,863.70, 1,756,114.83 and 789,254.82

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Solution

The fourth proportional to 1,272,863.70, 1,756,114.83 and 789,254.82 is: 1,088,900.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,863.70 : 1,756,114.83 = 789,254.82 : x
  2. Step 2: Convert to fraction form
    1,272,863.70/1,756,114.83 = 789,254.82/x
  3. Step 3: Cross multiply
    1,272,863.70x = 1,756,114.83 × 789,254.82
  4. Step 4: Simplify right side
    1,272,863.70x = 1,386,022,094,050.98
  5. Step 5: Solve for x
    x = 1,386,022,094,050.98/1,272,863.70
  6. Step 6: Final answer
    x = 1,088,900.64

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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.