Finding the Fourth Proportional to 663,323.14, 915,386.77 and 361,517.14
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Solution
The fourth proportional to 663,323.14, 915,386.77 and 361,517.14 is: 498,894.11
Step by Step Solution
- Step 1: Write the proportion equation
663,323.14 : 915,386.77 = 361,517.14 : x - Step 2: Convert to fraction form
663,323.14/915,386.77 = 361,517.14/x - Step 3: Cross multiply
663,323.14x = 915,386.77 × 361,517.14 - Step 4: Simplify right side
663,323.14x = 330,928,007,084.24 - Step 5: Solve for x
x = 330,928,007,084.24/663,323.14 - Step 6: Final answer
x = 498,894.11
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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.