Finding the Fourth Proportional to 680,809.69, 939,480.16 and 374,827.96
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Solution
The fourth proportional to 680,809.69, 939,480.16 and 374,827.96 is: 517,242.10
Step by Step Solution
- Step 1: Write the proportion equation
680,809.69 : 939,480.16 = 374,827.96 : x - Step 2: Convert to fraction form
680,809.69/939,480.16 = 374,827.96/x - Step 3: Cross multiply
680,809.69x = 939,480.16 × 374,827.96 - Step 4: Simplify right side
680,809.69x = 352,143,432,070.55 - Step 5: Solve for x
x = 352,143,432,070.55/680,809.69 - Step 6: Final answer
x = 517,242.10
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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.