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Finding the Fourth Proportional to 702,709.60, 969,741.43 and 380,418.93

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Solution

The fourth proportional to 702,709.60, 969,741.43 and 380,418.93 is: 524,979.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,709.60 : 969,741.43 = 380,418.93 : x
  2. Step 2: Convert to fraction form
    702,709.60/969,741.43 = 380,418.93/x
  3. Step 3: Cross multiply
    702,709.60x = 969,741.43 × 380,418.93
  4. Step 4: Simplify right side
    702,709.60x = 368,907,997,177.27
  5. Step 5: Solve for x
    x = 368,907,997,177.27/702,709.60
  6. Step 6: Final answer
    x = 524,979.30

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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.