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Finding the Fourth Proportional to 570,918.60, 856,109.70 and 331,100.67

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Solution

The fourth proportional to 570,918.60, 856,109.70 and 331,100.67 is: 496,495.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,918.60 : 856,109.70 = 331,100.67 : x
  2. Step 2: Convert to fraction form
    570,918.60/856,109.70 = 331,100.67/x
  3. Step 3: Cross multiply
    570,918.60x = 856,109.70 × 331,100.67
  4. Step 4: Simplify right side
    570,918.60x = 283,458,495,263.50
  5. Step 5: Solve for x
    x = 283,458,495,263.50/570,918.60
  6. Step 6: Final answer
    x = 496,495.46

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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.