Home / 1,288,847.46-1,778,637.68-708,078.08

Finding the Fourth Proportional to 1,288,847.46, 1,778,637.68 and 708,078.08

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Solution

The fourth proportional to 1,288,847.46, 1,778,637.68 and 708,078.08 is: 977,163.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,847.46 : 1,778,637.68 = 708,078.08 : x
  2. Step 2: Convert to fraction form
    1,288,847.46/1,778,637.68 = 708,078.08/x
  3. Step 3: Cross multiply
    1,288,847.46x = 1,778,637.68 × 708,078.08
  4. Step 4: Simplify right side
    1,288,847.46x = 1,259,414,341,036.48
  5. Step 5: Solve for x
    x = 1,259,414,341,036.48/1,288,847.46
  6. Step 6: Final answer
    x = 977,163.23

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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.