Finding the Fourth Proportional to 916,217.36, 1,374,471.84 and 442,937.60
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Solution
The fourth proportional to 916,217.36, 1,374,471.84 and 442,937.60 is: 664,476.89
Step by Step Solution
- Step 1: Write the proportion equation
916,217.36 : 1,374,471.84 = 442,937.60 : x - Step 2: Convert to fraction form
916,217.36/1,374,471.84 = 442,937.60/x - Step 3: Cross multiply
916,217.36x = 1,374,471.84 × 442,937.60 - Step 4: Simplify right side
916,217.36x = 608,805,258,077.18 - Step 5: Solve for x
x = 608,805,258,077.18/916,217.36 - Step 6: Final answer
x = 664,476.89
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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.