Finding the Fourth Proportional to 986,503.59, 1,479,806.42 and 312,656.49
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Solution
The fourth proportional to 986,503.59, 1,479,806.42 and 312,656.49 is: 469,000.91
Step by Step Solution
- Step 1: Write the proportion equation
986,503.59 : 1,479,806.42 = 312,656.49 : x - Step 2: Convert to fraction form
986,503.59/1,479,806.42 = 312,656.49/x - Step 3: Cross multiply
986,503.59x = 1,479,806.42 × 312,656.49 - Step 4: Simplify right side
986,503.59x = 462,671,079,593.38 - Step 5: Solve for x
x = 462,671,079,593.38/986,503.59 - Step 6: Final answer
x = 469,000.91
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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.