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Finding the Fourth Proportional to 554,902.60, 832,353.90 and 455,175.40

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Solution

The fourth proportional to 554,902.60, 832,353.90 and 455,175.40 is: 682,763.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,902.60 : 832,353.90 = 455,175.40 : x
  2. Step 2: Convert to fraction form
    554,902.60/832,353.90 = 455,175.40/x
  3. Step 3: Cross multiply
    554,902.60x = 832,353.90 × 455,175.40
  4. Step 4: Simplify right side
    554,902.60x = 378,867,019,374.06
  5. Step 5: Solve for x
    x = 378,867,019,374.06/554,902.60
  6. Step 6: Final answer
    x = 682,763.10

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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.