Finding the Fourth Proportional to 438,886.69, 605,612.57 and 245,294.80
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Solution
The fourth proportional to 438,886.69, 605,612.57 and 245,294.80 is: 338,478.28
Step by Step Solution
- Step 1: Write the proportion equation
438,886.69 : 605,612.57 = 245,294.80 : x - Step 2: Convert to fraction form
438,886.69/605,612.57 = 245,294.80/x - Step 3: Cross multiply
438,886.69x = 605,612.57 × 245,294.80 - Step 4: Simplify right side
438,886.69x = 148,553,611,495.13 - Step 5: Solve for x
x = 148,553,611,495.13/438,886.69 - Step 6: Final answer
x = 338,478.28
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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.