Home / 1,390,452.86-1,917,833.66-1,276,100.12

Finding the Fourth Proportional to 1,390,452.86, 1,917,833.66 and 1,276,100.12

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Solution

The fourth proportional to 1,390,452.86, 1,917,833.66 and 1,276,100.12 is: 1,760,108.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,452.86 : 1,917,833.66 = 1,276,100.12 : x
  2. Step 2: Convert to fraction form
    1,390,452.86/1,917,833.66 = 1,276,100.12/x
  3. Step 3: Cross multiply
    1,390,452.86x = 1,917,833.66 × 1,276,100.12
  4. Step 4: Simplify right side
    1,390,452.86x = 2,447,347,763,666.04
  5. Step 5: Solve for x
    x = 2,447,347,763,666.04/1,390,452.86
  6. Step 6: Final answer
    x = 1,760,108.40

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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.