Finding the Fourth Proportional to 1,190,994.95, 1,643,580.36 and 647,132.24
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Solution
The fourth proportional to 1,190,994.95, 1,643,580.36 and 647,132.24 is: 893,046.47
Step by Step Solution
- Step 1: Write the proportion equation
1,190,994.95 : 1,643,580.36 = 647,132.24 : x - Step 2: Convert to fraction form
1,190,994.95/1,643,580.36 = 647,132.24/x - Step 3: Cross multiply
1,190,994.95x = 1,643,580.36 × 647,132.24 - Step 4: Simplify right side
1,190,994.95x = 1,063,613,836,751.15 - Step 5: Solve for x
x = 1,063,613,836,751.15/1,190,994.95 - Step 6: Final answer
x = 893,046.47
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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.