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Finding the Fourth Proportional to 434,059.20, 650,870.10 and 256,620.60

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Solution

The fourth proportional to 434,059.20, 650,870.10 and 256,620.60 is: 384,801.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,059.20 : 650,870.10 = 256,620.60 : x
  2. Step 2: Convert to fraction form
    434,059.20/650,870.10 = 256,620.60/x
  3. Step 3: Cross multiply
    434,059.20x = 650,870.10 × 256,620.60
  4. Step 4: Simplify right side
    434,059.20x = 167,026,675,584.06
  5. Step 5: Solve for x
    x = 167,026,675,584.06/434,059.20
  6. Step 6: Final answer
    x = 384,801.60

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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.