Home / 1,421,010.68-1,960,936.44-776,453

Finding the Fourth Proportional to 1,421,010.68, 1,960,936.44 and 776,453

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Solution

The fourth proportional to 1,421,010.68, 1,960,936.44 and 776,453 is: 1,071,473.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,010.68 : 1,960,936.44 = 776,453 : x
  2. Step 2: Convert to fraction form
    1,421,010.68/1,960,936.44 = 776,453/x
  3. Step 3: Cross multiply
    1,421,010.68x = 1,960,936.44 × 776,453
  4. Step 4: Simplify right side
    1,421,010.68x = 1,522,574,981,647.32
  5. Step 5: Solve for x
    x = 1,522,574,981,647.32/1,421,010.68
  6. Step 6: Final answer
    x = 1,071,473.29

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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.