Finding the Fourth Proportional to 918,116.70, 1,377,175.05 and 898,433.70
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Solution
The fourth proportional to 918,116.70, 1,377,175.05 and 898,433.70 is: 1,347,650.55
Step by Step Solution
- Step 1: Write the proportion equation
918,116.70 : 1,377,175.05 = 898,433.70 : x - Step 2: Convert to fraction form
918,116.70/1,377,175.05 = 898,433.70/x - Step 3: Cross multiply
918,116.70x = 1,377,175.05 × 898,433.70 - Step 4: Simplify right side
918,116.70x = 1,237,300,475,719.19 - Step 5: Solve for x
x = 1,237,300,475,719.19/918,116.70 - Step 6: Final answer
x = 1,347,650.55
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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.