Home / 1,297,638.42-1,946,643.77-399,155.95

Finding the Fourth Proportional to 1,297,638.42, 1,946,643.77 and 399,155.95

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Solution

The fourth proportional to 1,297,638.42, 1,946,643.77 and 399,155.95 is: 598,791.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,638.42 : 1,946,643.77 = 399,155.95 : x
  2. Step 2: Convert to fraction form
    1,297,638.42/1,946,643.77 = 399,155.95/x
  3. Step 3: Cross multiply
    1,297,638.42x = 1,946,643.77 × 399,155.95
  4. Step 4: Simplify right side
    1,297,638.42x = 777,014,443,325.93
  5. Step 5: Solve for x
    x = 777,014,443,325.93/1,297,638.42
  6. Step 6: Final answer
    x = 598,791.18

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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.