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Finding the Fourth Proportional to 471,588.40, 650,772.08 and 256,724

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Solution

The fourth proportional to 471,588.40, 650,772.08 and 256,724 is: 354,268.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,588.40 : 650,772.08 = 256,724 : x
  2. Step 2: Convert to fraction form
    471,588.40/650,772.08 = 256,724/x
  3. Step 3: Cross multiply
    471,588.40x = 650,772.08 × 256,724
  4. Step 4: Simplify right side
    471,588.40x = 167,068,811,465.92
  5. Step 5: Solve for x
    x = 167,068,811,465.92/471,588.40
  6. Step 6: Final answer
    x = 354,268.28

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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.