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Finding the Fourth Proportional to 609,330.21, 913,398.74 and 254,445.72

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Solution

The fourth proportional to 609,330.21, 913,398.74 and 254,445.72 is: 381,419.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,330.21 : 913,398.74 = 254,445.72 : x
  2. Step 2: Convert to fraction form
    609,330.21/913,398.74 = 254,445.72/x
  3. Step 3: Cross multiply
    609,330.21x = 913,398.74 × 254,445.72
  4. Step 4: Simplify right side
    609,330.21x = 232,410,398,774.16
  5. Step 5: Solve for x
    x = 232,410,398,774.16/609,330.21
  6. Step 6: Final answer
    x = 381,419.46

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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.