Home / 1,187,572.75-1,638,850.40-651,028.75

Finding the Fourth Proportional to 1,187,572.75, 1,638,850.40 and 651,028.75

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Solution

The fourth proportional to 1,187,572.75, 1,638,850.40 and 651,028.75 is: 898,419.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,572.75 : 1,638,850.40 = 651,028.75 : x
  2. Step 2: Convert to fraction form
    1,187,572.75/1,638,850.40 = 651,028.75/x
  3. Step 3: Cross multiply
    1,187,572.75x = 1,638,850.40 × 651,028.75
  4. Step 4: Simplify right side
    1,187,572.75x = 1,066,938,727,349
  5. Step 5: Solve for x
    x = 1,066,938,727,349/1,187,572.75
  6. Step 6: Final answer
    x = 898,419.68

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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.