Finding the Fourth Proportional to 1,292,258.36, 1,938,387.08 and 345,604.52
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Solution
The fourth proportional to 1,292,258.36, 1,938,387.08 and 345,604.52 is: 518,406.66
Step by Step Solution
- Step 1: Write the proportion equation
1,292,258.36 : 1,938,387.08 = 345,604.52 : x - Step 2: Convert to fraction form
1,292,258.36/1,938,387.08 = 345,604.52/x - Step 3: Cross multiply
1,292,258.36x = 1,938,387.08 × 345,604.52 - Step 4: Simplify right side
1,292,258.36x = 669,915,336,357.60 - Step 5: Solve for x
x = 669,915,336,357.60/1,292,258.36 - Step 6: Final answer
x = 518,406.66
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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.