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Finding the Fourth Proportional to 987,255, 1,362,411.90 and 534,546

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Solution

The fourth proportional to 987,255, 1,362,411.90 and 534,546 is: 737,673.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,255 : 1,362,411.90 = 534,546 : x
  2. Step 2: Convert to fraction form
    987,255/1,362,411.90 = 534,546/x
  3. Step 3: Cross multiply
    987,255x = 1,362,411.90 × 534,546
  4. Step 4: Simplify right side
    987,255x = 728,271,831,497.40
  5. Step 5: Solve for x
    x = 728,271,831,497.40/987,255
  6. Step 6: Final answer
    x = 737,673.48

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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.