Finding the Fourth Proportional to 515,706.74, 711,687.58 and 289,368.98
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Solution
The fourth proportional to 515,706.74, 711,687.58 and 289,368.98 is: 399,336.08
Step by Step Solution
- Step 1: Write the proportion equation
515,706.74 : 711,687.58 = 289,368.98 : x - Step 2: Convert to fraction form
515,706.74/711,687.58 = 289,368.98/x - Step 3: Cross multiply
515,706.74x = 711,687.58 × 289,368.98 - Step 4: Simplify right side
515,706.74x = 205,940,307,656.42 - Step 5: Solve for x
x = 205,940,307,656.42/515,706.74 - Step 6: Final answer
x = 399,336.08
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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.