Home / 1,538,813.82-2,124,155.70-1,377,384.06

Finding the Fourth Proportional to 1,538,813.82, 2,124,155.70 and 1,377,384.06

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Solution

The fourth proportional to 1,538,813.82, 2,124,155.70 and 1,377,384.06 is: 1,901,320.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,813.82 : 2,124,155.70 = 1,377,384.06 : x
  2. Step 2: Convert to fraction form
    1,538,813.82/2,124,155.70 = 1,377,384.06/x
  3. Step 3: Cross multiply
    1,538,813.82x = 2,124,155.70 × 1,377,384.06
  4. Step 4: Simplify right side
    1,538,813.82x = 2,925,778,202,138.14
  5. Step 5: Solve for x
    x = 2,925,778,202,138.14/1,538,813.82
  6. Step 6: Final answer
    x = 1,901,320.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.