Home / 987,812.64-1,481,685.24-418,827.48

Finding the Fourth Proportional to 987,812.64, 1,481,685.24 and 418,827.48

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Solution

The fourth proportional to 987,812.64, 1,481,685.24 and 418,827.48 is: 628,226.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,812.64 : 1,481,685.24 = 418,827.48 : x
  2. Step 2: Convert to fraction form
    987,812.64/1,481,685.24 = 418,827.48/x
  3. Step 3: Cross multiply
    987,812.64x = 1,481,685.24 × 418,827.48
  4. Step 4: Simplify right side
    987,812.64x = 620,570,495,222.40
  5. Step 5: Solve for x
    x = 620,570,495,222.40/987,812.64
  6. Step 6: Final answer
    x = 628,226.92

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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.