Home / 1,139,726.82-1,708,740.81-381,119.70

Finding the Fourth Proportional to 1,139,726.82, 1,708,740.81 and 381,119.70

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Solution

The fourth proportional to 1,139,726.82, 1,708,740.81 and 381,119.70 is: 571,395.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,726.82 : 1,708,740.81 = 381,119.70 : x
  2. Step 2: Convert to fraction form
    1,139,726.82/1,708,740.81 = 381,119.70/x
  3. Step 3: Cross multiply
    1,139,726.82x = 1,708,740.81 × 381,119.70
  4. Step 4: Simplify right side
    1,139,726.82x = 651,234,784,884.96
  5. Step 5: Solve for x
    x = 651,234,784,884.96/1,139,726.82
  6. Step 6: Final answer
    x = 571,395.51

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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.