Home / 2,117,409.63-2,921,973.96-1,187,055.75

Finding the Fourth Proportional to 2,117,409.63, 2,921,973.96 and 1,187,055.75

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Solution

The fourth proportional to 2,117,409.63, 2,921,973.96 and 1,187,055.75 is: 1,638,108.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117,409.63 : 2,921,973.96 = 1,187,055.75 : x
  2. Step 2: Convert to fraction form
    2,117,409.63/2,921,973.96 = 1,187,055.75/x
  3. Step 3: Cross multiply
    2,117,409.63x = 2,921,973.96 × 1,187,055.75
  4. Step 4: Simplify right side
    2,117,409.63x = 3,468,545,990,568.27
  5. Step 5: Solve for x
    x = 3,468,545,990,568.27/2,117,409.63
  6. Step 6: Final answer
    x = 1,638,108.16

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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.