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Finding the Fourth Proportional to 404,938.70, 607,062.45 and 286,236.62

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Solution

The fourth proportional to 404,938.70, 607,062.45 and 286,236.62 is: 429,110.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,938.70 : 607,062.45 = 286,236.62 : x
  2. Step 2: Convert to fraction form
    404,938.70/607,062.45 = 286,236.62/x
  3. Step 3: Cross multiply
    404,938.70x = 607,062.45 × 286,236.62
  4. Step 4: Simplify right side
    404,938.70x = 173,763,503,816.92
  5. Step 5: Solve for x
    x = 173,763,503,816.92/404,938.70
  6. Step 6: Final answer
    x = 429,110.64

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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.