Finding the Fourth Proportional to 497,473.18, 686,623.80 and 316,149.76
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Solution
The fourth proportional to 497,473.18, 686,623.80 and 316,149.76 is: 436,357.09
Step by Step Solution
- Step 1: Write the proportion equation
497,473.18 : 686,623.80 = 316,149.76 : x - Step 2: Convert to fraction form
497,473.18/686,623.80 = 316,149.76/x - Step 3: Cross multiply
497,473.18x = 686,623.80 × 316,149.76 - Step 4: Simplify right side
497,473.18x = 217,075,949,580.29 - Step 5: Solve for x
x = 217,075,949,580.29/497,473.18 - Step 6: Final answer
x = 436,357.09
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.