Home / 3,913,028.80-5,871,292.80-1,390,494.40

Finding the Fourth Proportional to 3,913,028.80, 5,871,292.80 and 1,390,494.40

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Solution

The fourth proportional to 3,913,028.80, 5,871,292.80 and 1,390,494.40 is: 2,086,363.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913,028.80 : 5,871,292.80 = 1,390,494.40 : x
  2. Step 2: Convert to fraction form
    3,913,028.80/5,871,292.80 = 1,390,494.40/x
  3. Step 3: Cross multiply
    3,913,028.80x = 5,871,292.80 × 1,390,494.40
  4. Step 4: Simplify right side
    3,913,028.80x = 8,163,999,759,160.32
  5. Step 5: Solve for x
    x = 8,163,999,759,160.32/3,913,028.80
  6. Step 6: Final answer
    x = 2,086,363.32

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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.