Home / 1,290,301.97-1,780,623.63-709,562.54

Finding the Fourth Proportional to 1,290,301.97, 1,780,623.63 and 709,562.54

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Solution

The fourth proportional to 1,290,301.97, 1,780,623.63 and 709,562.54 is: 979,200.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,301.97 : 1,780,623.63 = 709,562.54 : x
  2. Step 2: Convert to fraction form
    1,290,301.97/1,780,623.63 = 709,562.54/x
  3. Step 3: Cross multiply
    1,290,301.97x = 1,780,623.63 × 709,562.54
  4. Step 4: Simplify right side
    1,290,301.97x = 1,263,463,816,783.70
  5. Step 5: Solve for x
    x = 1,263,463,816,783.70/1,290,301.97
  6. Step 6: Final answer
    x = 979,200.10

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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.