Finding the Fourth Proportional to 913,988.68, 1,371,263.28 and 408,974.80
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Solution
The fourth proportional to 913,988.68, 1,371,263.28 and 408,974.80 is: 613,587.61
Step by Step Solution
- Step 1: Write the proportion equation
913,988.68 : 1,371,263.28 = 408,974.80 : x - Step 2: Convert to fraction form
913,988.68/1,371,263.28 = 408,974.80/x - Step 3: Cross multiply
913,988.68x = 1,371,263.28 × 408,974.80 - Step 4: Simplify right side
913,988.68x = 560,812,125,685.34 - Step 5: Solve for x
x = 560,812,125,685.34/913,988.68 - Step 6: Final answer
x = 613,587.61
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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.