Home / 1,140,821.43-1,574,334.03-624,608.78

Finding the Fourth Proportional to 1,140,821.43, 1,574,334.03 and 624,608.78

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Solution

The fourth proportional to 1,140,821.43, 1,574,334.03 and 624,608.78 is: 861,960.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,821.43 : 1,574,334.03 = 624,608.78 : x
  2. Step 2: Convert to fraction form
    1,140,821.43/1,574,334.03 = 624,608.78/x
  3. Step 3: Cross multiply
    1,140,821.43x = 1,574,334.03 × 624,608.78
  4. Step 4: Simplify right side
    1,140,821.43x = 983,342,849,919.11
  5. Step 5: Solve for x
    x = 983,342,849,919.11/1,140,821.43
  6. Step 6: Final answer
    x = 861,960.36

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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.