Finding the Fourth Proportional to 640,107.18, 883,345.68 and 368,162.28
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Solution
The fourth proportional to 640,107.18, 883,345.68 and 368,162.28 is: 508,062.66
Step by Step Solution
- Step 1: Write the proportion equation
640,107.18 : 883,345.68 = 368,162.28 : x - Step 2: Convert to fraction form
640,107.18/883,345.68 = 368,162.28/x - Step 3: Cross multiply
640,107.18x = 883,345.68 × 368,162.28 - Step 4: Simplify right side
640,107.18x = 325,214,559,576.95 - Step 5: Solve for x
x = 325,214,559,576.95/640,107.18 - Step 6: Final answer
x = 508,062.66
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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.