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Finding the Fourth Proportional to 570,877.80, 856,436.91 and 215,883.96

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Solution

The fourth proportional to 570,877.80, 856,436.91 and 215,883.96 is: 323,871.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,877.80 : 856,436.91 = 215,883.96 : x
  2. Step 2: Convert to fraction form
    570,877.80/856,436.91 = 215,883.96/x
  3. Step 3: Cross multiply
    570,877.80x = 856,436.91 × 215,883.96
  4. Step 4: Simplify right side
    570,877.80x = 184,890,991,620.96
  5. Step 5: Solve for x
    x = 184,890,991,620.96/570,877.80
  6. Step 6: Final answer
    x = 323,871.40

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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.