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Finding the Fourth Proportional to 529,869.60, 794,804.40 and 305,920.80

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Solution

The fourth proportional to 529,869.60, 794,804.40 and 305,920.80 is: 458,881.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,869.60 : 794,804.40 = 305,920.80 : x
  2. Step 2: Convert to fraction form
    529,869.60/794,804.40 = 305,920.80/x
  3. Step 3: Cross multiply
    529,869.60x = 794,804.40 × 305,920.80
  4. Step 4: Simplify right side
    529,869.60x = 243,147,197,891.52
  5. Step 5: Solve for x
    x = 243,147,197,891.52/529,869.60
  6. Step 6: Final answer
    x = 458,881.20

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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.