Finding the Fourth Proportional to 411,971.80, 617,957.70 and 299,122.60
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Solution
The fourth proportional to 411,971.80, 617,957.70 and 299,122.60 is: 448,683.90
Step by Step Solution
- Step 1: Write the proportion equation
411,971.80 : 617,957.70 = 299,122.60 : x - Step 2: Convert to fraction form
411,971.80/617,957.70 = 299,122.60/x - Step 3: Cross multiply
411,971.80x = 617,957.70 × 299,122.60 - Step 4: Simplify right side
411,971.80x = 184,845,113,914.02 - Step 5: Solve for x
x = 184,845,113,914.02/411,971.80 - Step 6: Final answer
x = 448,683.90
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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.