Home / 684,936.63-1,027,238.76-285,359.40

Finding the Fourth Proportional to 684,936.63, 1,027,238.76 and 285,359.40

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Solution

The fourth proportional to 684,936.63, 1,027,238.76 and 285,359.40 is: 427,969.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,936.63 : 1,027,238.76 = 285,359.40 : x
  2. Step 2: Convert to fraction form
    684,936.63/1,027,238.76 = 285,359.40/x
  3. Step 3: Cross multiply
    684,936.63x = 1,027,238.76 × 285,359.40
  4. Step 4: Simplify right side
    684,936.63x = 293,132,236,210.34
  5. Step 5: Solve for x
    x = 293,132,236,210.34/684,936.63
  6. Step 6: Final answer
    x = 427,969.86

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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.