Home / 1,247,807.70-1,871,711.55-1,090,343.70

Finding the Fourth Proportional to 1,247,807.70, 1,871,711.55 and 1,090,343.70

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Solution

The fourth proportional to 1,247,807.70, 1,871,711.55 and 1,090,343.70 is: 1,635,515.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,807.70 : 1,871,711.55 = 1,090,343.70 : x
  2. Step 2: Convert to fraction form
    1,247,807.70/1,871,711.55 = 1,090,343.70/x
  3. Step 3: Cross multiply
    1,247,807.70x = 1,871,711.55 × 1,090,343.70
  4. Step 4: Simplify right side
    1,247,807.70x = 2,040,808,896,759.74
  5. Step 5: Solve for x
    x = 2,040,808,896,759.74/1,247,807.70
  6. Step 6: Final answer
    x = 1,635,515.55

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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.