Finding the Fourth Proportional to 1,226,521.19, 1,692,582.18 and 682,657.12
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Solution
The fourth proportional to 1,226,521.19, 1,692,582.18 and 682,657.12 is: 942,057.32
Step by Step Solution
- Step 1: Write the proportion equation
1,226,521.19 : 1,692,582.18 = 682,657.12 : x - Step 2: Convert to fraction form
1,226,521.19/1,692,582.18 = 682,657.12/x - Step 3: Cross multiply
1,226,521.19x = 1,692,582.18 × 682,657.12 - Step 4: Simplify right side
1,226,521.19x = 1,155,453,266,397.11 - Step 5: Solve for x
x = 1,155,453,266,397.11/1,226,521.19 - Step 6: Final answer
x = 942,057.32
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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.