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Finding the Fourth Proportional to 714,265.02, 985,716.54 and 427,730.22

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Solution

The fourth proportional to 714,265.02, 985,716.54 and 427,730.22 is: 590,286.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,265.02 : 985,716.54 = 427,730.22 : x
  2. Step 2: Convert to fraction form
    714,265.02/985,716.54 = 427,730.22/x
  3. Step 3: Cross multiply
    714,265.02x = 985,716.54 × 427,730.22
  4. Step 4: Simplify right side
    714,265.02x = 421,620,752,511.84
  5. Step 5: Solve for x
    x = 421,620,752,511.84/714,265.02
  6. Step 6: Final answer
    x = 590,286.16

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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.