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Finding the Fourth Proportional to 702,750.60, 969,784.11 and 380,458.08

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Solution

The fourth proportional to 702,750.60, 969,784.11 and 380,458.08 is: 525,025.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,750.60 : 969,784.11 = 380,458.08 : x
  2. Step 2: Convert to fraction form
    702,750.60/969,784.11 = 380,458.08/x
  3. Step 3: Cross multiply
    702,750.60x = 969,784.11 × 380,458.08
  4. Step 4: Simplify right side
    702,750.60x = 368,962,200,505.11
  5. Step 5: Solve for x
    x = 368,962,200,505.11/702,750.60
  6. Step 6: Final answer
    x = 525,025.81

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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.