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Finding the Fourth Proportional to 435,054.74, 653,059.29 and 345,672.05

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Solution

The fourth proportional to 435,054.74, 653,059.29 and 345,672.05 is: 518,887.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,054.74 : 653,059.29 = 345,672.05 : x
  2. Step 2: Convert to fraction form
    435,054.74/653,059.29 = 345,672.05/x
  3. Step 3: Cross multiply
    435,054.74x = 653,059.29 × 345,672.05
  4. Step 4: Simplify right side
    435,054.74x = 225,744,340,280.55
  5. Step 5: Solve for x
    x = 225,744,340,280.55/435,054.74
  6. Step 6: Final answer
    x = 518,887.22

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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.