Home / 1,246,515.40-1,869,773.10-405,152.20

Finding the Fourth Proportional to 1,246,515.40, 1,869,773.10 and 405,152.20

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Solution

The fourth proportional to 1,246,515.40, 1,869,773.10 and 405,152.20 is: 607,728.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246,515.40 : 1,869,773.10 = 405,152.20 : x
  2. Step 2: Convert to fraction form
    1,246,515.40/1,869,773.10 = 405,152.20/x
  3. Step 3: Cross multiply
    1,246,515.40x = 1,869,773.10 × 405,152.20
  4. Step 4: Simplify right side
    1,246,515.40x = 757,542,684,965.82
  5. Step 5: Solve for x
    x = 757,542,684,965.82/1,246,515.40
  6. Step 6: Final answer
    x = 607,728.30

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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.