Home / 987,568.80-1,362,838.16-534,850.72

Finding the Fourth Proportional to 987,568.80, 1,362,838.16 and 534,850.72

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Solution

The fourth proportional to 987,568.80, 1,362,838.16 and 534,850.72 is: 738,090.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,568.80 : 1,362,838.16 = 534,850.72 : x
  2. Step 2: Convert to fraction form
    987,568.80/1,362,838.16 = 534,850.72/x
  3. Step 3: Cross multiply
    987,568.80x = 1,362,838.16 × 534,850.72
  4. Step 4: Simplify right side
    987,568.80x = 728,914,971,119.48
  5. Step 5: Solve for x
    x = 728,914,971,119.48/987,568.80
  6. Step 6: Final answer
    x = 738,090.32

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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.