Home / 1,396,915.20-2,095,372.80-399,643.20

Finding the Fourth Proportional to 1,396,915.20, 2,095,372.80 and 399,643.20

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Solution

The fourth proportional to 1,396,915.20, 2,095,372.80 and 399,643.20 is: 599,464.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,915.20 : 2,095,372.80 = 399,643.20 : x
  2. Step 2: Convert to fraction form
    1,396,915.20/2,095,372.80 = 399,643.20/x
  3. Step 3: Cross multiply
    1,396,915.20x = 2,095,372.80 × 399,643.20
  4. Step 4: Simplify right side
    1,396,915.20x = 837,401,490,984.96
  5. Step 5: Solve for x
    x = 837,401,490,984.96/1,396,915.20
  6. Step 6: Final answer
    x = 599,464.80

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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.