Home / 684,789.27-1,026,342.62-384,638.91

Finding the Fourth Proportional to 684,789.27, 1,026,342.62 and 384,638.91

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Solution

The fourth proportional to 684,789.27, 1,026,342.62 and 384,638.91 is: 576,485.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,789.27 : 1,026,342.62 = 384,638.91 : x
  2. Step 2: Convert to fraction form
    684,789.27/1,026,342.62 = 384,638.91/x
  3. Step 3: Cross multiply
    684,789.27x = 1,026,342.62 × 384,638.91
  4. Step 4: Simplify right side
    684,789.27x = 394,771,304,720.15
  5. Step 5: Solve for x
    x = 394,771,304,720.15/684,789.27
  6. Step 6: Final answer
    x = 576,485.82

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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.