Finding the Fourth Proportional to 640,948.62, 884,410.84 and 368,963.96
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Solution
The fourth proportional to 640,948.62, 884,410.84 and 368,963.96 is: 509,113.71
Step by Step Solution
- Step 1: Write the proportion equation
640,948.62 : 884,410.84 = 368,963.96 : x - Step 2: Convert to fraction form
640,948.62/884,410.84 = 368,963.96/x - Step 3: Cross multiply
640,948.62x = 884,410.84 × 368,963.96 - Step 4: Simplify right side
640,948.62x = 326,315,727,081.94 - Step 5: Solve for x
x = 326,315,727,081.94/640,948.62 - Step 6: Final answer
x = 509,113.71
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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.