Finding the Fourth Proportional to 750,781.90, 1,036,078.11 and 406,617.62
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Solution
The fourth proportional to 750,781.90, 1,036,078.11 and 406,617.62 is: 561,131.82
Step by Step Solution
- Step 1: Write the proportion equation
750,781.90 : 1,036,078.11 = 406,617.62 : x - Step 2: Convert to fraction form
750,781.90/1,036,078.11 = 406,617.62/x - Step 3: Cross multiply
750,781.90x = 1,036,078.11 × 406,617.62 - Step 4: Simplify right side
750,781.90x = 421,287,617,013.46 - Step 5: Solve for x
x = 421,287,617,013.46/750,781.90 - Step 6: Final answer
x = 561,131.82
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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.