Home / 1,434,796.20-1,979,927.96-790,216.43

Finding the Fourth Proportional to 1,434,796.20, 1,979,927.96 and 790,216.43

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Solution

The fourth proportional to 1,434,796.20, 1,979,927.96 and 790,216.43 is: 1,090,448.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,796.20 : 1,979,927.96 = 790,216.43 : x
  2. Step 2: Convert to fraction form
    1,434,796.20/1,979,927.96 = 790,216.43/x
  3. Step 3: Cross multiply
    1,434,796.20x = 1,979,927.96 × 790,216.43
  4. Step 4: Simplify right side
    1,434,796.20x = 1,564,571,590,357.66
  5. Step 5: Solve for x
    x = 1,564,571,590,357.66/1,434,796.20
  6. Step 6: Final answer
    x = 1,090,448.66

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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.