Finding the Fourth Proportional to 654,431.16, 979,616.87 and 354,166.99
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Solution
The fourth proportional to 654,431.16, 979,616.87 and 354,166.99 is: 530,151.96
Step by Step Solution
- Step 1: Write the proportion equation
654,431.16 : 979,616.87 = 354,166.99 : x - Step 2: Convert to fraction form
654,431.16/979,616.87 = 354,166.99/x - Step 3: Cross multiply
654,431.16x = 979,616.87 × 354,166.99 - Step 4: Simplify right side
654,431.16x = 346,947,963,691.44 - Step 5: Solve for x
x = 346,947,963,691.44/654,431.16 - Step 6: Final answer
x = 530,151.96
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.