Home / 1,214,127.48-1,676,986.11-909,565.86

Finding the Fourth Proportional to 1,214,127.48, 1,676,986.11 and 909,565.86

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Solution

The fourth proportional to 1,214,127.48, 1,676,986.11 and 909,565.86 is: 1,256,317.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,127.48 : 1,676,986.11 = 909,565.86 : x
  2. Step 2: Convert to fraction form
    1,214,127.48/1,676,986.11 = 909,565.86/x
  3. Step 3: Cross multiply
    1,214,127.48x = 1,676,986.11 × 909,565.86
  4. Step 4: Simplify right side
    1,214,127.48x = 1,525,329,313,350.20
  5. Step 5: Solve for x
    x = 1,525,329,313,350.20/1,214,127.48
  6. Step 6: Final answer
    x = 1,256,317.26

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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.