Home / 1,288,653.52-1,778,284.30-772,692.22

Finding the Fourth Proportional to 1,288,653.52, 1,778,284.30 and 772,692.22

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Solution

The fourth proportional to 1,288,653.52, 1,778,284.30 and 772,692.22 is: 1,066,280.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,653.52 : 1,778,284.30 = 772,692.22 : x
  2. Step 2: Convert to fraction form
    1,288,653.52/1,778,284.30 = 772,692.22/x
  3. Step 3: Cross multiply
    1,288,653.52x = 1,778,284.30 × 772,692.22
  4. Step 4: Simplify right side
    1,288,653.52x = 1,374,066,443,558.15
  5. Step 5: Solve for x
    x = 1,374,066,443,558.15/1,288,653.52
  6. Step 6: Final answer
    x = 1,066,280.75

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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.