Home / 1,435,809.78-1,981,430.49-791,253.06

Finding the Fourth Proportional to 1,435,809.78, 1,981,430.49 and 791,253.06

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Solution

The fourth proportional to 1,435,809.78, 1,981,430.49 and 791,253.06 is: 1,091,936.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,809.78 : 1,981,430.49 = 791,253.06 : x
  2. Step 2: Convert to fraction form
    1,435,809.78/1,981,430.49 = 791,253.06/x
  3. Step 3: Cross multiply
    1,435,809.78x = 1,981,430.49 × 791,253.06
  4. Step 4: Simplify right side
    1,435,809.78x = 1,567,812,938,389.80
  5. Step 5: Solve for x
    x = 1,567,812,938,389.80/1,435,809.78
  6. Step 6: Final answer
    x = 1,091,936.38

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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.