Home / 1,272,869.70-1,756,123.08-789,260.82

Finding the Fourth Proportional to 1,272,869.70, 1,756,123.08 and 789,260.82

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Solution

The fourth proportional to 1,272,869.70, 1,756,123.08 and 789,260.82 is: 1,088,908.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,869.70 : 1,756,123.08 = 789,260.82 : x
  2. Step 2: Convert to fraction form
    1,272,869.70/1,756,123.08 = 789,260.82/x
  3. Step 3: Cross multiply
    1,272,869.70x = 1,756,123.08 × 789,260.82
  4. Step 4: Simplify right side
    1,272,869.70x = 1,386,039,142,141.73
  5. Step 5: Solve for x
    x = 1,386,039,142,141.73/1,272,869.70
  6. Step 6: Final answer
    x = 1,088,908.90

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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.