Home / 1,221,512.40-1,832,983.02-511,480.98

Finding the Fourth Proportional to 1,221,512.40, 1,832,983.02 and 511,480.98

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Solution

The fourth proportional to 1,221,512.40, 1,832,983.02 and 511,480.98 is: 767,520.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,512.40 : 1,832,983.02 = 511,480.98 : x
  2. Step 2: Convert to fraction form
    1,221,512.40/1,832,983.02 = 511,480.98/x
  3. Step 3: Cross multiply
    1,221,512.40x = 1,832,983.02 × 511,480.98
  4. Step 4: Simplify right side
    1,221,512.40x = 937,535,951,392.96
  5. Step 5: Solve for x
    x = 937,535,951,392.96/1,221,512.40
  6. Step 6: Final answer
    x = 767,520.62

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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.