Finding the Fourth Proportional to 640,703.39, 884,355.18 and 423,070.97
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Solution
The fourth proportional to 640,703.39, 884,355.18 and 423,070.97 is: 583,959.77
Step by Step Solution
- Step 1: Write the proportion equation
640,703.39 : 884,355.18 = 423,070.97 : x - Step 2: Convert to fraction form
640,703.39/884,355.18 = 423,070.97/x - Step 3: Cross multiply
640,703.39x = 884,355.18 × 423,070.97 - Step 4: Simplify right side
640,703.39x = 374,145,003,827.13 - Step 5: Solve for x
x = 374,145,003,827.13/640,703.39 - Step 6: Final answer
x = 583,959.77
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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.