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Finding the Fourth Proportional to 570,788.67, 856,109.03 and 215,756.49

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Solution

The fourth proportional to 570,788.67, 856,109.03 and 215,756.49 is: 323,606.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,788.67 : 856,109.03 = 215,756.49 : x
  2. Step 2: Convert to fraction form
    570,788.67/856,109.03 = 215,756.49/x
  3. Step 3: Cross multiply
    570,788.67x = 856,109.03 × 215,756.49
  4. Step 4: Simplify right side
    570,788.67x = 184,711,078,291.32
  5. Step 5: Solve for x
    x = 184,711,078,291.32/570,788.67
  6. Step 6: Final answer
    x = 323,606.77

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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.