Home / 684,664.56-1,027,090.26-285,211.91

Finding the Fourth Proportional to 684,664.56, 1,027,090.26 and 285,211.91

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Solution

The fourth proportional to 684,664.56, 1,027,090.26 and 285,211.91 is: 427,856.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,664.56 : 1,027,090.26 = 285,211.91 : x
  2. Step 2: Convert to fraction form
    684,664.56/1,027,090.26 = 285,211.91/x
  3. Step 3: Cross multiply
    684,664.56x = 1,027,090.26 × 285,211.91
  4. Step 4: Simplify right side
    684,664.56x = 292,938,369,661.55
  5. Step 5: Solve for x
    x = 292,938,369,661.55/684,664.56
  6. Step 6: Final answer
    x = 427,856.77

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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.