Home / 2,640,345.80-3,643,551.23-1,621,553.72

Finding the Fourth Proportional to 2,640,345.80, 3,643,551.23 and 1,621,553.72

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Solution

The fourth proportional to 2,640,345.80, 3,643,551.23 and 1,621,553.72 is: 2,237,666.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640,345.80 : 3,643,551.23 = 1,621,553.72 : x
  2. Step 2: Convert to fraction form
    2,640,345.80/3,643,551.23 = 1,621,553.72/x
  3. Step 3: Cross multiply
    2,640,345.80x = 3,643,551.23 × 1,621,553.72
  4. Step 4: Simplify right side
    2,640,345.80x = 5,908,214,064,179.84
  5. Step 5: Solve for x
    x = 5,908,214,064,179.84/2,640,345.80
  6. Step 6: Final answer
    x = 2,237,666.77

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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.