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Finding the Fourth Proportional to 488,608.10, 732,912.15 and 470,893.40

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Solution

The fourth proportional to 488,608.10, 732,912.15 and 470,893.40 is: 706,340.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,608.10 : 732,912.15 = 470,893.40 : x
  2. Step 2: Convert to fraction form
    488,608.10/732,912.15 = 470,893.40/x
  3. Step 3: Cross multiply
    488,608.10x = 732,912.15 × 470,893.40
  4. Step 4: Simplify right side
    488,608.10x = 345,123,494,214.81
  5. Step 5: Solve for x
    x = 345,123,494,214.81/488,608.10
  6. Step 6: Final answer
    x = 706,340.10

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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.