Home / 1,276,871.92-1,915,745.40-436,014.16

Finding the Fourth Proportional to 1,276,871.92, 1,915,745.40 and 436,014.16

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Solution

The fourth proportional to 1,276,871.92, 1,915,745.40 and 436,014.16 is: 654,170.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,871.92 : 1,915,745.40 = 436,014.16 : x
  2. Step 2: Convert to fraction form
    1,276,871.92/1,915,745.40 = 436,014.16/x
  3. Step 3: Cross multiply
    1,276,871.92x = 1,915,745.40 × 436,014.16
  4. Step 4: Simplify right side
    1,276,871.92x = 835,292,121,354.86
  5. Step 5: Solve for x
    x = 835,292,121,354.86/1,276,871.92
  6. Step 6: Final answer
    x = 654,170.64

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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.