Home / 1,137,637.04-1,705,401.24-428,135.60

Finding the Fourth Proportional to 1,137,637.04, 1,705,401.24 and 428,135.60

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Solution

The fourth proportional to 1,137,637.04, 1,705,401.24 and 428,135.60 is: 641,806.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,637.04 : 1,705,401.24 = 428,135.60 : x
  2. Step 2: Convert to fraction form
    1,137,637.04/1,705,401.24 = 428,135.60/x
  3. Step 3: Cross multiply
    1,137,637.04x = 1,705,401.24 × 428,135.60
  4. Step 4: Simplify right side
    1,137,637.04x = 730,142,983,128.14
  5. Step 5: Solve for x
    x = 730,142,983,128.14/1,137,637.04
  6. Step 6: Final answer
    x = 641,806.62

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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.