Finding the Fourth Proportional to 640,703.80, 884,236.98 and 368,781.88
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Solution
The fourth proportional to 640,703.80, 884,236.98 and 368,781.88 is: 508,956.83
Step by Step Solution
- Step 1: Write the proportion equation
640,703.80 : 884,236.98 = 368,781.88 : x - Step 2: Convert to fraction form
640,703.80/884,236.98 = 368,781.88/x - Step 3: Cross multiply
640,703.80x = 884,236.98 × 368,781.88 - Step 4: Simplify right side
640,703.80x = 326,090,575,849.92 - Step 5: Solve for x
x = 326,090,575,849.92/640,703.80 - Step 6: Final answer
x = 508,956.83
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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.