Home / 1,137,809.76-1,706,963.90-427,837.80

Finding the Fourth Proportional to 1,137,809.76, 1,706,963.90 and 427,837.80

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Solution

The fourth proportional to 1,137,809.76, 1,706,963.90 and 427,837.80 is: 641,850.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,809.76 : 1,706,963.90 = 427,837.80 : x
  2. Step 2: Convert to fraction form
    1,137,809.76/1,706,963.90 = 427,837.80/x
  3. Step 3: Cross multiply
    1,137,809.76x = 1,706,963.90 × 427,837.80
  4. Step 4: Simplify right side
    1,137,809.76x = 730,303,677,925.56
  5. Step 5: Solve for x
    x = 730,303,677,925.56/1,137,809.76
  6. Step 6: Final answer
    x = 641,850.43

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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.