Finding the Fourth Proportional to 1,390,077.70, 1,918,201.98 and 846,153.03
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Solution
The fourth proportional to 1,390,077.70, 1,918,201.98 and 846,153.03 is: 1,167,627.12
Step by Step Solution
- Step 1: Write the proportion equation
1,390,077.70 : 1,918,201.98 = 846,153.03 : x - Step 2: Convert to fraction form
1,390,077.70/1,918,201.98 = 846,153.03/x - Step 3: Cross multiply
1,390,077.70x = 1,918,201.98 × 846,153.03 - Step 4: Simplify right side
1,390,077.70x = 1,623,092,425,515.53 - Step 5: Solve for x
x = 1,623,092,425,515.53/1,390,077.70 - Step 6: Final answer
x = 1,167,627.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.