Finding the Fourth Proportional to 2,657,419.20, 3,986,128.80 and 1,845,604.80
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Solution
The fourth proportional to 2,657,419.20, 3,986,128.80 and 1,845,604.80 is: 2,768,407.20
Step by Step Solution
- Step 1: Write the proportion equation
2,657,419.20 : 3,986,128.80 = 1,845,604.80 : x - Step 2: Convert to fraction form
2,657,419.20/3,986,128.80 = 1,845,604.80/x - Step 3: Cross multiply
2,657,419.20x = 3,986,128.80 × 1,845,604.80 - Step 4: Simplify right side
2,657,419.20x = 7,356,818,446,698.24 - Step 5: Solve for x
x = 7,356,818,446,698.24/2,657,419.20 - Step 6: Final answer
x = 2,768,407.20
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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.