Home / 1,292,653.86-1,939,191-381,928.74

Finding the Fourth Proportional to 1,292,653.86, 1,939,191 and 381,928.74

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Solution

The fourth proportional to 1,292,653.86, 1,939,191 and 381,928.74 is: 572,955.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,653.86 : 1,939,191 = 381,928.74 : x
  2. Step 2: Convert to fraction form
    1,292,653.86/1,939,191 = 381,928.74/x
  3. Step 3: Cross multiply
    1,292,653.86x = 1,939,191 × 381,928.74
  4. Step 4: Simplify right side
    1,292,653.86x = 740,632,775,249.34
  5. Step 5: Solve for x
    x = 740,632,775,249.34/1,292,653.86
  6. Step 6: Final answer
    x = 572,955.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.