Home / 1,320,963.35-1,980,820.50-511,726.82

Finding the Fourth Proportional to 1,320,963.35, 1,980,820.50 and 511,726.82

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Solution

The fourth proportional to 1,320,963.35, 1,980,820.50 and 511,726.82 is: 767,348.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,963.35 : 1,980,820.50 = 511,726.82 : x
  2. Step 2: Convert to fraction form
    1,320,963.35/1,980,820.50 = 511,726.82/x
  3. Step 3: Cross multiply
    1,320,963.35x = 1,980,820.50 × 511,726.82
  4. Step 4: Simplify right side
    1,320,963.35x = 1,013,638,965,551.71
  5. Step 5: Solve for x
    x = 1,013,638,965,551.71/1,320,963.35
  6. Step 6: Final answer
    x = 767,348.29

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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.