Home / 1,272,864.70-1,756,116.21-789,255.82

Finding the Fourth Proportional to 1,272,864.70, 1,756,116.21 and 789,255.82

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Solution

The fourth proportional to 1,272,864.70, 1,756,116.21 and 789,255.82 is: 1,088,902.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,864.70 : 1,756,116.21 = 789,255.82 : x
  2. Step 2: Convert to fraction form
    1,272,864.70/1,756,116.21 = 789,255.82/x
  3. Step 3: Cross multiply
    1,272,864.70x = 1,756,116.21 × 789,255.82
  4. Step 4: Simplify right side
    1,272,864.70x = 1,386,024,939,338.84
  5. Step 5: Solve for x
    x = 1,386,024,939,338.84/1,272,864.70
  6. Step 6: Final answer
    x = 1,088,902.02

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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.