Home / 1,991,608.47-2,748,407.13-1,132,168.77

Finding the Fourth Proportional to 1,991,608.47, 2,748,407.13 and 1,132,168.77

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Solution

The fourth proportional to 1,991,608.47, 2,748,407.13 and 1,132,168.77 is: 1,562,385.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,608.47 : 2,748,407.13 = 1,132,168.77 : x
  2. Step 2: Convert to fraction form
    1,991,608.47/2,748,407.13 = 1,132,168.77/x
  3. Step 3: Cross multiply
    1,991,608.47x = 2,748,407.13 × 1,132,168.77
  4. Step 4: Simplify right side
    1,991,608.47x = 3,111,660,719,831.33
  5. Step 5: Solve for x
    x = 3,111,660,719,831.33/1,991,608.47
  6. Step 6: Final answer
    x = 1,562,385.76

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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.