Home / 1,391,881.06-2,087,822.74-381,011.40

Finding the Fourth Proportional to 1,391,881.06, 2,087,822.74 and 381,011.40

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Solution

The fourth proportional to 1,391,881.06, 2,087,822.74 and 381,011.40 is: 571,517.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,881.06 : 2,087,822.74 = 381,011.40 : x
  2. Step 2: Convert to fraction form
    1,391,881.06/2,087,822.74 = 381,011.40/x
  3. Step 3: Cross multiply
    1,391,881.06x = 2,087,822.74 × 381,011.40
  4. Step 4: Simplify right side
    1,391,881.06x = 795,484,265,119.24
  5. Step 5: Solve for x
    x = 795,484,265,119.24/1,391,881.06
  6. Step 6: Final answer
    x = 571,517.41

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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.