Home / 1,297,640.52-1,946,646.90-399,158.01

Finding the Fourth Proportional to 1,297,640.52, 1,946,646.90 and 399,158.01

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Solution

The fourth proportional to 1,297,640.52, 1,946,646.90 and 399,158.01 is: 598,794.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,640.52 : 1,946,646.90 = 399,158.01 : x
  2. Step 2: Convert to fraction form
    1,297,640.52/1,946,646.90 = 399,158.01/x
  3. Step 3: Cross multiply
    1,297,640.52x = 1,946,646.90 × 399,158.01
  4. Step 4: Simplify right side
    1,297,640.52x = 777,019,702,776.67
  5. Step 5: Solve for x
    x = 777,019,702,776.67/1,297,640.52
  6. Step 6: Final answer
    x = 598,794.27

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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.