Home / 1,433,675.12-1,978,471.55-780,305.82

Finding the Fourth Proportional to 1,433,675.12, 1,978,471.55 and 780,305.82

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Solution

The fourth proportional to 1,433,675.12, 1,978,471.55 and 780,305.82 is: 1,076,821.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,675.12 : 1,978,471.55 = 780,305.82 : x
  2. Step 2: Convert to fraction form
    1,433,675.12/1,978,471.55 = 780,305.82/x
  3. Step 3: Cross multiply
    1,433,675.12x = 1,978,471.55 × 780,305.82
  4. Step 4: Simplify right side
    1,433,675.12x = 1,543,812,865,169.42
  5. Step 5: Solve for x
    x = 1,543,812,865,169.42/1,433,675.12
  6. Step 6: Final answer
    x = 1,076,821.97

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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.