Finding the Fourth Proportional to 640,078.12, 883,334.64 and 368,146.08
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Solution
The fourth proportional to 640,078.12, 883,334.64 and 368,146.08 is: 508,057.02
Step by Step Solution
- Step 1: Write the proportion equation
640,078.12 : 883,334.64 = 368,146.08 : x - Step 2: Convert to fraction form
640,078.12/883,334.64 = 368,146.08/x - Step 3: Cross multiply
640,078.12x = 883,334.64 × 368,146.08 - Step 4: Simplify right side
640,078.12x = 325,196,185,044.21 - Step 5: Solve for x
x = 325,196,185,044.21/640,078.12 - Step 6: Final answer
x = 508,057.02
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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.