Home / 2,128,411.44-2,937,270-1,161,603.78

Finding the Fourth Proportional to 2,128,411.44, 2,937,270 and 1,161,603.78

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Solution

The fourth proportional to 2,128,411.44, 2,937,270 and 1,161,603.78 is: 1,603,047.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,411.44 : 2,937,270 = 1,161,603.78 : x
  2. Step 2: Convert to fraction form
    2,128,411.44/2,937,270 = 1,161,603.78/x
  3. Step 3: Cross multiply
    2,128,411.44x = 2,937,270 × 1,161,603.78
  4. Step 4: Simplify right side
    2,128,411.44x = 3,411,943,934,880.60
  5. Step 5: Solve for x
    x = 3,411,943,934,880.60/2,128,411.44
  6. Step 6: Final answer
    x = 1,603,047.17

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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.