Finding the Fourth Proportional to 423,719.72, 635,580.62 and 103,872.99
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Solution
The fourth proportional to 423,719.72, 635,580.62 and 103,872.99 is: 155,809.74
Step by Step Solution
- Step 1: Write the proportion equation
423,719.72 : 635,580.62 = 103,872.99 : x - Step 2: Convert to fraction form
423,719.72/635,580.62 = 103,872.99/x - Step 3: Cross multiply
423,719.72x = 635,580.62 × 103,872.99 - Step 4: Simplify right side
423,719.72x = 66,019,658,866.09 - Step 5: Solve for x
x = 66,019,658,866.09/423,719.72 - Step 6: Final answer
x = 155,809.74
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.