Finding the Fourth Proportional to 910,761.57, 1,366,459.47 and 405,681.21
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Solution
The fourth proportional to 910,761.57, 1,366,459.47 and 405,681.21 is: 608,663.07
Step by Step Solution
- Step 1: Write the proportion equation
910,761.57 : 1,366,459.47 = 405,681.21 : x - Step 2: Convert to fraction form
910,761.57/1,366,459.47 = 405,681.21/x - Step 3: Cross multiply
910,761.57x = 1,366,459.47 × 405,681.21 - Step 4: Simplify right side
910,761.57x = 554,346,931,205.56 - Step 5: Solve for x
x = 554,346,931,205.56/910,761.57 - Step 6: Final answer
x = 608,663.07
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.