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Finding the Fourth Proportional to 630,711.92, 946,192.50 and 231,356.40

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Solution

The fourth proportional to 630,711.92, 946,192.50 and 231,356.40 is: 347,080.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,711.92 : 946,192.50 = 231,356.40 : x
  2. Step 2: Convert to fraction form
    630,711.92/946,192.50 = 231,356.40/x
  3. Step 3: Cross multiply
    630,711.92x = 946,192.50 × 231,356.40
  4. Step 4: Simplify right side
    630,711.92x = 218,907,690,507
  5. Step 5: Solve for x
    x = 218,907,690,507/630,711.92
  6. Step 6: Final answer
    x = 347,080.32

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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.