Finding the Fourth Proportional to 1,345,455.09, 2,015,898.84 and 811,854.90
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Solution
The fourth proportional to 1,345,455.09, 2,015,898.84 and 811,854.90 is: 1,216,404.30
Step by Step Solution
- Step 1: Write the proportion equation
1,345,455.09 : 2,015,898.84 = 811,854.90 : x - Step 2: Convert to fraction form
1,345,455.09/2,015,898.84 = 811,854.90/x - Step 3: Cross multiply
1,345,455.09x = 2,015,898.84 × 811,854.90 - Step 4: Simplify right side
1,345,455.09x = 1,636,617,351,158.32 - Step 5: Solve for x
x = 1,636,617,351,158.32/1,345,455.09 - Step 6: Final answer
x = 1,216,404.30
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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.