Finding the Fourth Proportional to 918,201.70, 1,377,302.55 and 669,369.70
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Solution
The fourth proportional to 918,201.70, 1,377,302.55 and 669,369.70 is: 1,004,054.55
Step by Step Solution
- Step 1: Write the proportion equation
918,201.70 : 1,377,302.55 = 669,369.70 : x - Step 2: Convert to fraction form
918,201.70/1,377,302.55 = 669,369.70/x - Step 3: Cross multiply
918,201.70x = 1,377,302.55 × 669,369.70 - Step 4: Simplify right side
918,201.70x = 921,924,594,702.74 - Step 5: Solve for x
x = 921,924,594,702.74/918,201.70 - Step 6: Final answer
x = 1,004,054.55
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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.