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Finding the Fourth Proportional to 413,496.30, 620,827.65 and 256,032.30

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Solution

The fourth proportional to 413,496.30, 620,827.65 and 256,032.30 is: 384,409.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,496.30 : 620,827.65 = 256,032.30 : x
  2. Step 2: Convert to fraction form
    413,496.30/620,827.65 = 256,032.30/x
  3. Step 3: Cross multiply
    413,496.30x = 620,827.65 × 256,032.30
  4. Step 4: Simplify right side
    413,496.30x = 158,951,931,133.10
  5. Step 5: Solve for x
    x = 158,951,931,133.10/413,496.30
  6. Step 6: Final answer
    x = 384,409.56

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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.