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Finding the Fourth Proportional to 452,003.36, 623,996.88 and 318,463.52

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Solution

The fourth proportional to 452,003.36, 623,996.88 and 318,463.52 is: 439,643.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,003.36 : 623,996.88 = 318,463.52 : x
  2. Step 2: Convert to fraction form
    452,003.36/623,996.88 = 318,463.52/x
  3. Step 3: Cross multiply
    452,003.36x = 623,996.88 × 318,463.52
  4. Step 4: Simplify right side
    452,003.36x = 198,720,242,873.82
  5. Step 5: Solve for x
    x = 198,720,242,873.82/452,003.36
  6. Step 6: Final answer
    x = 439,643.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.