Finding the Fourth Proportional to 1,218,580.19, 1,681,698.43 and 735,134.96
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Solution
The fourth proportional to 1,218,580.19, 1,681,698.43 and 735,134.96 is: 1,014,521.09
Step by Step Solution
- Step 1: Write the proportion equation
1,218,580.19 : 1,681,698.43 = 735,134.96 : x - Step 2: Convert to fraction form
1,218,580.19/1,681,698.43 = 735,134.96/x - Step 3: Cross multiply
1,218,580.19x = 1,681,698.43 × 735,134.96 - Step 4: Simplify right side
1,218,580.19x = 1,236,275,308,070.11 - Step 5: Solve for x
x = 1,236,275,308,070.11/1,218,580.19 - Step 6: Final answer
x = 1,014,521.09
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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.