Finding the Fourth Proportional to 640,394.41, 883,719.64 and 368,549.63
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Solution
The fourth proportional to 640,394.41, 883,719.64 and 368,549.63 is: 508,584.31
Step by Step Solution
- Step 1: Write the proportion equation
640,394.41 : 883,719.64 = 368,549.63 : x - Step 2: Convert to fraction form
640,394.41/883,719.64 = 368,549.63/x - Step 3: Cross multiply
640,394.41x = 883,719.64 × 368,549.63 - Step 4: Simplify right side
640,394.41x = 325,694,546,345.73 - Step 5: Solve for x
x = 325,694,546,345.73/640,394.41 - Step 6: Final answer
x = 508,584.31
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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.