Home / 1,581,171.23-2,370,903.78-821,137.70

Finding the Fourth Proportional to 1,581,171.23, 2,370,903.78 and 821,137.70

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Solution

The fourth proportional to 1,581,171.23, 2,370,903.78 and 821,137.70 is: 1,231,263.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,171.23 : 2,370,903.78 = 821,137.70 : x
  2. Step 2: Convert to fraction form
    1,581,171.23/2,370,903.78 = 821,137.70/x
  3. Step 3: Cross multiply
    1,581,171.23x = 2,370,903.78 × 821,137.70
  4. Step 4: Simplify right side
    1,581,171.23x = 1,946,838,476,830.51
  5. Step 5: Solve for x
    x = 1,946,838,476,830.51/1,581,171.23
  6. Step 6: Final answer
    x = 1,231,263.53

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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.