Home / 1,421,778.20-2,133,040.91-511,053.08

Finding the Fourth Proportional to 1,421,778.20, 2,133,040.91 and 511,053.08

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Solution

The fourth proportional to 1,421,778.20, 2,133,040.91 and 511,053.08 is: 766,713.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,778.20 : 2,133,040.91 = 511,053.08 : x
  2. Step 2: Convert to fraction form
    1,421,778.20/2,133,040.91 = 511,053.08/x
  3. Step 3: Cross multiply
    1,421,778.20x = 2,133,040.91 × 511,053.08
  4. Step 4: Simplify right side
    1,421,778.20x = 1,090,097,113,601.03
  5. Step 5: Solve for x
    x = 1,090,097,113,601.03/1,421,778.20
  6. Step 6: Final answer
    x = 766,713.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.