Finding the Fourth Proportional to 985,862.80, 1,479,056.20 and 311,956.08
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Solution
The fourth proportional to 985,862.80, 1,479,056.20 and 311,956.08 is: 468,017.02
Step by Step Solution
- Step 1: Write the proportion equation
985,862.80 : 1,479,056.20 = 311,956.08 : x - Step 2: Convert to fraction form
985,862.80/1,479,056.20 = 311,956.08/x - Step 3: Cross multiply
985,862.80x = 1,479,056.20 × 311,956.08 - Step 4: Simplify right side
985,862.80x = 461,400,574,251.70 - Step 5: Solve for x
x = 461,400,574,251.70/985,862.80 - Step 6: Final answer
x = 468,017.02
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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.