Finding the Fourth Proportional to 557,971.68, 769,984.68 and 316,276.48
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Solution
The fourth proportional to 557,971.68, 769,984.68 and 316,276.48 is: 436,452.34
Step by Step Solution
- Step 1: Write the proportion equation
557,971.68 : 769,984.68 = 316,276.48 : x - Step 2: Convert to fraction form
557,971.68/769,984.68 = 316,276.48/x - Step 3: Cross multiply
557,971.68x = 769,984.68 × 316,276.48 - Step 4: Simplify right side
557,971.68x = 243,528,044,244.33 - Step 5: Solve for x
x = 243,528,044,244.33/557,971.68 - Step 6: Final answer
x = 436,452.34
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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.