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Finding the Fourth Proportional to 471,366.40, 650,499.20 and 256,520.08

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Solution

The fourth proportional to 471,366.40, 650,499.20 and 256,520.08 is: 354,005.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,366.40 : 650,499.20 = 256,520.08 : x
  2. Step 2: Convert to fraction form
    471,366.40/650,499.20 = 256,520.08/x
  3. Step 3: Cross multiply
    471,366.40x = 650,499.20 × 256,520.08
  4. Step 4: Simplify right side
    471,366.40x = 166,866,106,823.94
  5. Step 5: Solve for x
    x = 166,866,106,823.94/471,366.40
  6. Step 6: Final answer
    x = 354,005.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.