Finding the Fourth Proportional to 1,355,378.91, 2,033,065.12 and 748,138.11
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Solution
The fourth proportional to 1,355,378.91, 2,033,065.12 and 748,138.11 is: 1,122,205.37
Step by Step Solution
- Step 1: Write the proportion equation
1,355,378.91 : 2,033,065.12 = 748,138.11 : x - Step 2: Convert to fraction form
1,355,378.91/2,033,065.12 = 748,138.11/x - Step 3: Cross multiply
1,355,378.91x = 2,033,065.12 × 748,138.11 - Step 4: Simplify right side
1,355,378.91x = 1,521,013,482,477.71 - Step 5: Solve for x
x = 1,521,013,482,477.71/1,355,378.91 - Step 6: Final answer
x = 1,122,205.37
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.