Finding the Fourth Proportional to 1,418,642.30, 2,128,059.45 and 577,208.70
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Solution
The fourth proportional to 1,418,642.30, 2,128,059.45 and 577,208.70 is: 865,852.11
Step by Step Solution
- Step 1: Write the proportion equation
1,418,642.30 : 2,128,059.45 = 577,208.70 : x - Step 2: Convert to fraction form
1,418,642.30/2,128,059.45 = 577,208.70/x - Step 3: Cross multiply
1,418,642.30x = 2,128,059.45 × 577,208.70 - Step 4: Simplify right side
1,418,642.30x = 1,228,334,428,657.22 - Step 5: Solve for x
x = 1,228,334,428,657.22/1,418,642.30 - Step 6: Final answer
x = 865,852.11
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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.