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Finding the Fourth Proportional to 630,776.56, 946,359.24 and 378,337.36

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Solution

The fourth proportional to 630,776.56, 946,359.24 and 378,337.36 is: 567,622.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,776.56 : 946,359.24 = 378,337.36 : x
  2. Step 2: Convert to fraction form
    630,776.56/946,359.24 = 378,337.36/x
  3. Step 3: Cross multiply
    630,776.56x = 946,359.24 × 378,337.36
  4. Step 4: Simplify right side
    630,776.56x = 358,043,056,473.21
  5. Step 5: Solve for x
    x = 358,043,056,473.21/630,776.56
  6. Step 6: Final answer
    x = 567,622.64

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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.