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Finding the Fourth Proportional to 802,887.60, 1,204,039.80 and 403,395.60

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Solution

The fourth proportional to 802,887.60, 1,204,039.80 and 403,395.60 is: 604,946.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,887.60 : 1,204,039.80 = 403,395.60 : x
  2. Step 2: Convert to fraction form
    802,887.60/1,204,039.80 = 403,395.60/x
  3. Step 3: Cross multiply
    802,887.60x = 1,204,039.80 × 403,395.60
  4. Step 4: Simplify right side
    802,887.60x = 485,704,357,544.88
  5. Step 5: Solve for x
    x = 485,704,357,544.88/802,887.60
  6. Step 6: Final answer
    x = 604,946.89

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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.