Home / 1,288,857.73-1,778,655.01-708,118.48

Finding the Fourth Proportional to 1,288,857.73, 1,778,655.01 and 708,118.48

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Solution

The fourth proportional to 1,288,857.73, 1,778,655.01 and 708,118.48 is: 977,220.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,857.73 : 1,778,655.01 = 708,118.48 : x
  2. Step 2: Convert to fraction form
    1,288,857.73/1,778,655.01 = 708,118.48/x
  3. Step 3: Cross multiply
    1,288,857.73x = 1,778,655.01 × 708,118.48
  4. Step 4: Simplify right side
    1,288,857.73x = 1,259,498,477,161.25
  5. Step 5: Solve for x
    x = 1,259,498,477,161.25/1,288,857.73
  6. Step 6: Final answer
    x = 977,220.72

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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.