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Finding the Fourth Proportional to 455,094.80, 683,419.80 and 298,019.60

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Solution

The fourth proportional to 455,094.80, 683,419.80 and 298,019.60 is: 447,538.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,094.80 : 683,419.80 = 298,019.60 : x
  2. Step 2: Convert to fraction form
    455,094.80/683,419.80 = 298,019.60/x
  3. Step 3: Cross multiply
    455,094.80x = 683,419.80 × 298,019.60
  4. Step 4: Simplify right side
    455,094.80x = 203,672,495,428.08
  5. Step 5: Solve for x
    x = 203,672,495,428.08/455,094.80
  6. Step 6: Final answer
    x = 447,538.61

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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.