Home / 1,356,545.28-1,871,963.76-805,284.56

Finding the Fourth Proportional to 1,356,545.28, 1,871,963.76 and 805,284.56

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Solution

The fourth proportional to 1,356,545.28, 1,871,963.76 and 805,284.56 is: 1,111,251.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356,545.28 : 1,871,963.76 = 805,284.56 : x
  2. Step 2: Convert to fraction form
    1,356,545.28/1,871,963.76 = 805,284.56/x
  3. Step 3: Cross multiply
    1,356,545.28x = 1,871,963.76 × 805,284.56
  4. Step 4: Simplify right side
    1,356,545.28x = 1,507,463,512,807.55
  5. Step 5: Solve for x
    x = 1,507,463,512,807.55/1,356,545.28
  6. Step 6: Final answer
    x = 1,111,251.89

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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.