Finding the Fourth Proportional to 1,291,854.31, 1,936,660.45 and 651,623.60
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Solution
The fourth proportional to 1,291,854.31, 1,936,660.45 and 651,623.60 is: 976,869.95
Step by Step Solution
- Step 1: Write the proportion equation
1,291,854.31 : 1,936,660.45 = 651,623.60 : x - Step 2: Convert to fraction form
1,291,854.31/1,936,660.45 = 651,623.60/x - Step 3: Cross multiply
1,291,854.31x = 1,936,660.45 × 651,623.60 - Step 4: Simplify right side
1,291,854.31x = 1,261,973,651,587.03 - Step 5: Solve for x
x = 1,261,973,651,587.03/1,291,854.31 - Step 6: Final answer
x = 976,869.95
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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.