Finding the Fourth Proportional to 665,867.04, 918,671.44 and 379,183.84
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Solution
The fourth proportional to 665,867.04, 918,671.44 and 379,183.84 is: 523,145.53
Step by Step Solution
- Step 1: Write the proportion equation
665,867.04 : 918,671.44 = 379,183.84 : x - Step 2: Convert to fraction form
665,867.04/918,671.44 = 379,183.84/x - Step 3: Cross multiply
665,867.04x = 918,671.44 × 379,183.84 - Step 4: Simplify right side
665,867.04x = 348,345,364,317.53 - Step 5: Solve for x
x = 348,345,364,317.53/665,867.04 - Step 6: Final answer
x = 523,145.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.