Finding the Fourth Proportional to 821,301.80, 1,133,394.18 and 463,605.80
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Solution
The fourth proportional to 821,301.80, 1,133,394.18 and 463,605.80 is: 639,774.70
Step by Step Solution
- Step 1: Write the proportion equation
821,301.80 : 1,133,394.18 = 463,605.80 : x - Step 2: Convert to fraction form
821,301.80/1,133,394.18 = 463,605.80/x - Step 3: Cross multiply
821,301.80x = 1,133,394.18 × 463,605.80 - Step 4: Simplify right side
821,301.80x = 525,448,115,534.24 - Step 5: Solve for x
x = 525,448,115,534.24/821,301.80 - Step 6: Final answer
x = 639,774.70
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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.