Home / 1,356,472.73-1,871,862.53-805,211.57

Finding the Fourth Proportional to 1,356,472.73, 1,871,862.53 and 805,211.57

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Solution

The fourth proportional to 1,356,472.73, 1,871,862.53 and 805,211.57 is: 1,111,150.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356,472.73 : 1,871,862.53 = 805,211.57 : x
  2. Step 2: Convert to fraction form
    1,356,472.73/1,871,862.53 = 805,211.57/x
  3. Step 3: Cross multiply
    1,356,472.73x = 1,871,862.53 × 805,211.57
  4. Step 4: Simplify right side
    1,356,472.73x = 1,507,245,353,220.10
  5. Step 5: Solve for x
    x = 1,507,245,353,220.10/1,356,472.73
  6. Step 6: Final answer
    x = 1,111,150.50

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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.