Finding the Fourth Proportional to 423,720.72, 635,582.12 and 103,873.99
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Solution
The fourth proportional to 423,720.72, 635,582.12 and 103,873.99 is: 155,811.24
Step by Step Solution
- Step 1: Write the proportion equation
423,720.72 : 635,582.12 = 103,873.99 : x - Step 2: Convert to fraction form
423,720.72/635,582.12 = 103,873.99/x - Step 3: Cross multiply
423,720.72x = 635,582.12 × 103,873.99 - Step 4: Simplify right side
423,720.72x = 66,020,450,777.06 - Step 5: Solve for x
x = 66,020,450,777.06/423,720.72 - Step 6: Final answer
x = 155,811.24
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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.