Home / 1,500,761.49-2,071,257.38-920,331.69

Finding the Fourth Proportional to 1,500,761.49, 2,071,257.38 and 920,331.69

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Solution

The fourth proportional to 1,500,761.49, 2,071,257.38 and 920,331.69 is: 1,270,184.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,761.49 : 2,071,257.38 = 920,331.69 : x
  2. Step 2: Convert to fraction form
    1,500,761.49/2,071,257.38 = 920,331.69/x
  3. Step 3: Cross multiply
    1,500,761.49x = 2,071,257.38 × 920,331.69
  4. Step 4: Simplify right side
    1,500,761.49x = 1,906,243,804,960.37
  5. Step 5: Solve for x
    x = 1,906,243,804,960.37/1,500,761.49
  6. Step 6: Final answer
    x = 1,270,184.38

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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.