Finding the Fourth Proportional to 1,386,253.17, 1,912,904.55 and 774,352.44
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Solution
The fourth proportional to 1,386,253.17, 1,912,904.55 and 774,352.44 is: 1,068,536.64
Step by Step Solution
- Step 1: Write the proportion equation
1,386,253.17 : 1,912,904.55 = 774,352.44 : x - Step 2: Convert to fraction form
1,386,253.17/1,912,904.55 = 774,352.44/x - Step 3: Cross multiply
1,386,253.17x = 1,912,904.55 × 774,352.44 - Step 4: Simplify right side
1,386,253.17x = 1,481,262,305,779.60 - Step 5: Solve for x
x = 1,481,262,305,779.60/1,386,253.17 - Step 6: Final answer
x = 1,068,536.64
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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.