Home / 1,871,320.20-2,806,980.30-1,021,014.60

Finding the Fourth Proportional to 1,871,320.20, 2,806,980.30 and 1,021,014.60

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Solution

The fourth proportional to 1,871,320.20, 2,806,980.30 and 1,021,014.60 is: 1,531,521.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871,320.20 : 2,806,980.30 = 1,021,014.60 : x
  2. Step 2: Convert to fraction form
    1,871,320.20/2,806,980.30 = 1,021,014.60/x
  3. Step 3: Cross multiply
    1,871,320.20x = 2,806,980.30 × 1,021,014.60
  4. Step 4: Simplify right side
    1,871,320.20x = 2,865,967,868,212.38
  5. Step 5: Solve for x
    x = 2,865,967,868,212.38/1,871,320.20
  6. Step 6: Final answer
    x = 1,531,521.90

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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.