Home / 684,434.53-1,026,796.31-257,961.30

Finding the Fourth Proportional to 684,434.53, 1,026,796.31 and 257,961.30

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Solution

The fourth proportional to 684,434.53, 1,026,796.31 and 257,961.30 is: 386,996.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,434.53 : 1,026,796.31 = 257,961.30 : x
  2. Step 2: Convert to fraction form
    684,434.53/1,026,796.31 = 257,961.30/x
  3. Step 3: Cross multiply
    684,434.53x = 1,026,796.31 × 257,961.30
  4. Step 4: Simplify right side
    684,434.53x = 264,873,710,962.80
  5. Step 5: Solve for x
    x = 264,873,710,962.80/684,434.53
  6. Step 6: Final answer
    x = 386,996.42

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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.