Home / 2,128,649.40-2,937,600-1,161,843.12

Finding the Fourth Proportional to 2,128,649.40, 2,937,600 and 1,161,843.12

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Solution

The fourth proportional to 2,128,649.40, 2,937,600 and 1,161,843.12 is: 1,603,378.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,649.40 : 2,937,600 = 1,161,843.12 : x
  2. Step 2: Convert to fraction form
    2,128,649.40/2,937,600 = 1,161,843.12/x
  3. Step 3: Cross multiply
    2,128,649.40x = 2,937,600 × 1,161,843.12
  4. Step 4: Simplify right side
    2,128,649.40x = 3,413,030,349,312.00
  5. Step 5: Solve for x
    x = 3,413,030,349,312.00/2,128,649.40
  6. Step 6: Final answer
    x = 1,603,378.34

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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.