Home / 1,144,123.53-1,578,775.50-685,226.36

Finding the Fourth Proportional to 1,144,123.53, 1,578,775.50 and 685,226.36

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Solution

The fourth proportional to 1,144,123.53, 1,578,775.50 and 685,226.36 is: 945,543.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144,123.53 : 1,578,775.50 = 685,226.36 : x
  2. Step 2: Convert to fraction form
    1,144,123.53/1,578,775.50 = 685,226.36/x
  3. Step 3: Cross multiply
    1,144,123.53x = 1,578,775.50 × 685,226.36
  4. Step 4: Simplify right side
    1,144,123.53x = 1,081,818,581,228.30
  5. Step 5: Solve for x
    x = 1,081,818,581,228.30/1,144,123.53
  6. Step 6: Final answer
    x = 945,543.51

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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.