Finding the Fourth Proportional to 750,781.08, 1,036,106.46 and 428,543.64
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Solution
The fourth proportional to 750,781.08, 1,036,106.46 and 428,543.64 is: 591,406.53
Step by Step Solution
- Step 1: Write the proportion equation
750,781.08 : 1,036,106.46 = 428,543.64 : x - Step 2: Convert to fraction form
750,781.08/1,036,106.46 = 428,543.64/x - Step 3: Cross multiply
750,781.08x = 1,036,106.46 × 428,543.64 - Step 4: Simplify right side
750,781.08x = 444,016,833,795.91 - Step 5: Solve for x
x = 444,016,833,795.91/750,781.08 - Step 6: Final answer
x = 591,406.53
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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.