Finding the Fourth Proportional to 689,744.68, 1,034,660.74 and 216,448.72
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Solution
The fourth proportional to 689,744.68, 1,034,660.74 and 216,448.72 is: 324,686.80
Step by Step Solution
- Step 1: Write the proportion equation
689,744.68 : 1,034,660.74 = 216,448.72 : x - Step 2: Convert to fraction form
689,744.68/1,034,660.74 = 216,448.72/x - Step 3: Cross multiply
689,744.68x = 1,034,660.74 × 216,448.72 - Step 4: Simplify right side
689,744.68x = 223,950,992,807.25 - Step 5: Solve for x
x = 223,950,992,807.25/689,744.68 - Step 6: Final answer
x = 324,686.80
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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.