Finding the Fourth Proportional to 612,618.64, 845,289.84 and 357,920.62
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Solution
The fourth proportional to 612,618.64, 845,289.84 and 357,920.62 is: 493,858.08
Step by Step Solution
- Step 1: Write the proportion equation
612,618.64 : 845,289.84 = 357,920.62 : x - Step 2: Convert to fraction form
612,618.64/845,289.84 = 357,920.62/x - Step 3: Cross multiply
612,618.64x = 845,289.84 × 357,920.62 - Step 4: Simplify right side
612,618.64x = 302,546,663,612.50 - Step 5: Solve for x
x = 302,546,663,612.50/612,618.64 - Step 6: Final answer
x = 493,858.08
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1.5x scale
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.