Home / 1,871,761.80-2,807,642.70-1,021,456.20

Finding the Fourth Proportional to 1,871,761.80, 2,807,642.70 and 1,021,456.20

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Solution

The fourth proportional to 1,871,761.80, 2,807,642.70 and 1,021,456.20 is: 1,532,184.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871,761.80 : 2,807,642.70 = 1,021,456.20 : x
  2. Step 2: Convert to fraction form
    1,871,761.80/2,807,642.70 = 1,021,456.20/x
  3. Step 3: Cross multiply
    1,871,761.80x = 2,807,642.70 × 1,021,456.20
  4. Step 4: Simplify right side
    1,871,761.80x = 2,867,884,043,299.74
  5. Step 5: Solve for x
    x = 2,867,884,043,299.74/1,871,761.80
  6. Step 6: Final answer
    x = 1,532,184.30

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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.