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Finding the Fourth Proportional to 613,652.48, 846,830.40 and 345,380.48

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Solution

The fourth proportional to 613,652.48, 846,830.40 and 345,380.48 is: 476,619.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,652.48 : 846,830.40 = 345,380.48 : x
  2. Step 2: Convert to fraction form
    613,652.48/846,830.40 = 345,380.48/x
  3. Step 3: Cross multiply
    613,652.48x = 846,830.40 × 345,380.48
  4. Step 4: Simplify right side
    613,652.48x = 292,478,690,030.59
  5. Step 5: Solve for x
    x = 292,478,690,030.59/613,652.48
  6. Step 6: Final answer
    x = 476,619.42

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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.