Finding the Fourth Proportional to 1,298,983.58, 1,948,245.74 and 352,428.12
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Solution
The fourth proportional to 1,298,983.58, 1,948,245.74 and 352,428.12 is: 528,579.88
Step by Step Solution
- Step 1: Write the proportion equation
1,298,983.58 : 1,948,245.74 = 352,428.12 : x - Step 2: Convert to fraction form
1,298,983.58/1,948,245.74 = 352,428.12/x - Step 3: Cross multiply
1,298,983.58x = 1,948,245.74 × 352,428.12 - Step 4: Simplify right side
1,298,983.58x = 686,616,583,446.21 - Step 5: Solve for x
x = 686,616,583,446.21/1,298,983.58 - Step 6: Final answer
x = 528,579.88
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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.