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Finding the Fourth Proportional to 570,874.66, 856,432.23 and 215,880.82

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Solution

The fourth proportional to 570,874.66, 856,432.23 and 215,880.82 is: 323,866.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,874.66 : 856,432.23 = 215,880.82 : x
  2. Step 2: Convert to fraction form
    570,874.66/856,432.23 = 215,880.82/x
  3. Step 3: Cross multiply
    570,874.66x = 856,432.23 × 215,880.82
  4. Step 4: Simplify right side
    570,874.66x = 184,887,292,086.83
  5. Step 5: Solve for x
    x = 184,887,292,086.83/570,874.66
  6. Step 6: Final answer
    x = 323,866.70

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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.