Home / 912,939.86-1,259,894.09-505,034.67

Finding the Fourth Proportional to 912,939.86, 1,259,894.09 and 505,034.67

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Solution

The fourth proportional to 912,939.86, 1,259,894.09 and 505,034.67 is: 696,968.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,939.86 : 1,259,894.09 = 505,034.67 : x
  2. Step 2: Convert to fraction form
    912,939.86/1,259,894.09 = 505,034.67/x
  3. Step 3: Cross multiply
    912,939.86x = 1,259,894.09 × 505,034.67
  4. Step 4: Simplify right side
    912,939.86x = 636,290,193,452.93
  5. Step 5: Solve for x
    x = 636,290,193,452.93/912,939.86
  6. Step 6: Final answer
    x = 696,968.36

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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.