Finding the Fourth Proportional to 918,122.40, 1,377,183.60 and 909,265.05
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Solution
The fourth proportional to 918,122.40, 1,377,183.60 and 909,265.05 is: 1,363,897.58
Step by Step Solution
- Step 1: Write the proportion equation
918,122.40 : 1,377,183.60 = 909,265.05 : x - Step 2: Convert to fraction form
918,122.40/1,377,183.60 = 909,265.05/x - Step 3: Cross multiply
918,122.40x = 1,377,183.60 × 909,265.05 - Step 4: Simplify right side
918,122.40x = 1,252,224,914,913.18 - Step 5: Solve for x
x = 1,252,224,914,913.18/918,122.40 - Step 6: Final answer
x = 1,363,897.58
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1.5x scale
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.