Home / 1,297,357.31-1,946,221.69-398,874.49

Finding the Fourth Proportional to 1,297,357.31, 1,946,221.69 and 398,874.49

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Solution

The fourth proportional to 1,297,357.31, 1,946,221.69 and 398,874.49 is: 598,368.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,357.31 : 1,946,221.69 = 398,874.49 : x
  2. Step 2: Convert to fraction form
    1,297,357.31/1,946,221.69 = 398,874.49/x
  3. Step 3: Cross multiply
    1,297,357.31x = 1,946,221.69 × 398,874.49
  4. Step 4: Simplify right side
    1,297,357.31x = 776,298,184,025.69
  5. Step 5: Solve for x
    x = 776,298,184,025.69/1,297,357.31
  6. Step 6: Final answer
    x = 598,368.84

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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.