Finding the Fourth Proportional to 986,011.34, 1,479,238.53 and 312,133.08
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Solution
The fourth proportional to 986,011.34, 1,479,238.53 and 312,133.08 is: 468,269.75
Step by Step Solution
- Step 1: Write the proportion equation
986,011.34 : 1,479,238.53 = 312,133.08 : x - Step 2: Convert to fraction form
986,011.34/1,479,238.53 = 312,133.08/x - Step 3: Cross multiply
986,011.34x = 1,479,238.53 × 312,133.08 - Step 4: Simplify right side
986,011.34x = 461,719,278,423.57 - Step 5: Solve for x
x = 461,719,278,423.57/986,011.34 - Step 6: Final answer
x = 468,269.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.