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Finding the Fourth Proportional to 864,059.60, 1,295,700.60 and 331,403.60

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Solution

The fourth proportional to 864,059.60, 1,295,700.60 and 331,403.60 is: 496,956.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,059.60 : 1,295,700.60 = 331,403.60 : x
  2. Step 2: Convert to fraction form
    864,059.60/1,295,700.60 = 331,403.60/x
  3. Step 3: Cross multiply
    864,059.60x = 1,295,700.60 × 331,403.60
  4. Step 4: Simplify right side
    864,059.60x = 429,399,843,362.16
  5. Step 5: Solve for x
    x = 429,399,843,362.16/864,059.60
  6. Step 6: Final answer
    x = 496,956.28

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1.5x scale

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.