Home / 1,640,857.22-2,264,496.63-915,846.38

Finding the Fourth Proportional to 1,640,857.22, 2,264,496.63 and 915,846.38

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Solution

The fourth proportional to 1,640,857.22, 2,264,496.63 and 915,846.38 is: 1,263,931.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,857.22 : 2,264,496.63 = 915,846.38 : x
  2. Step 2: Convert to fraction form
    1,640,857.22/2,264,496.63 = 915,846.38/x
  3. Step 3: Cross multiply
    1,640,857.22x = 2,264,496.63 × 915,846.38
  4. Step 4: Simplify right side
    1,640,857.22x = 2,073,931,041,107.70
  5. Step 5: Solve for x
    x = 2,073,931,041,107.70/1,640,857.22
  6. Step 6: Final answer
    x = 1,263,931.45

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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.