Finding the Fourth Proportional to 564,143.68, 778,587.12 and 322,436.44
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Solution
The fourth proportional to 564,143.68, 778,587.12 and 322,436.44 is: 445,001.63
Step by Step Solution
- Step 1: Write the proportion equation
564,143.68 : 778,587.12 = 322,436.44 : x - Step 2: Convert to fraction form
564,143.68/778,587.12 = 322,436.44/x - Step 3: Cross multiply
564,143.68x = 778,587.12 × 322,436.44 - Step 4: Simplify right side
564,143.68x = 251,044,859,202.65 - Step 5: Solve for x
x = 251,044,859,202.65/564,143.68 - Step 6: Final answer
x = 445,001.63
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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.