Finding the Fourth Proportional to 680,587.12, 939,202.56 and 374,656.96
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Solution
The fourth proportional to 680,587.12, 939,202.56 and 374,656.96 is: 517,022.38
Step by Step Solution
- Step 1: Write the proportion equation
680,587.12 : 939,202.56 = 374,656.96 : x - Step 2: Convert to fraction form
680,587.12/939,202.56 = 374,656.96/x - Step 3: Cross multiply
680,587.12x = 939,202.56 × 374,656.96 - Step 4: Simplify right side
680,587.12x = 351,878,775,953.82 - Step 5: Solve for x
x = 351,878,775,953.82/680,587.12 - Step 6: Final answer
x = 517,022.38
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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.