Finding the Fourth Proportional to 986,671.40, 1,361,869.68 and 557,202.92
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Solution
The fourth proportional to 986,671.40, 1,361,869.68 and 557,202.92 is: 769,088.64
Step by Step Solution
- Step 1: Write the proportion equation
986,671.40 : 1,361,869.68 = 557,202.92 : x - Step 2: Convert to fraction form
986,671.40/1,361,869.68 = 557,202.92/x - Step 3: Cross multiply
986,671.40x = 1,361,869.68 × 557,202.92 - Step 4: Simplify right side
986,671.40x = 758,837,762,355.47 - Step 5: Solve for x
x = 758,837,762,355.47/986,671.40 - Step 6: Final answer
x = 769,088.64
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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.