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Finding the Fourth Proportional to 630,989.60, 946,743.60 and 231,821.60

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Solution

The fourth proportional to 630,989.60, 946,743.60 and 231,821.60 is: 347,827.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,989.60 : 946,743.60 = 231,821.60 : x
  2. Step 2: Convert to fraction form
    630,989.60/946,743.60 = 231,821.60/x
  3. Step 3: Cross multiply
    630,989.60x = 946,743.60 × 231,821.60
  4. Step 4: Simplify right side
    630,989.60x = 219,475,616,141.76
  5. Step 5: Solve for x
    x = 219,475,616,141.76/630,989.60
  6. Step 6: Final answer
    x = 347,827.63

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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.