Home / 1,074,245.40-1,611,368.10-505,272.78

Finding the Fourth Proportional to 1,074,245.40, 1,611,368.10 and 505,272.78

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Solution

The fourth proportional to 1,074,245.40, 1,611,368.10 and 505,272.78 is: 757,909.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,074,245.40 : 1,611,368.10 = 505,272.78 : x
  2. Step 2: Convert to fraction form
    1,074,245.40/1,611,368.10 = 505,272.78/x
  3. Step 3: Cross multiply
    1,074,245.40x = 1,611,368.10 × 505,272.78
  4. Step 4: Simplify right side
    1,074,245.40x = 814,180,439,490.32
  5. Step 5: Solve for x
    x = 814,180,439,490.32/1,074,245.40
  6. Step 6: Final answer
    x = 757,909.17

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Double scale
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Similar ratio
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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.