Finding the Fourth Proportional to 692,293.68, 1,038,615.90 and 212,545.98
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Solution
The fourth proportional to 692,293.68, 1,038,615.90 and 212,545.98 is: 318,872.81
Step by Step Solution
- Step 1: Write the proportion equation
692,293.68 : 1,038,615.90 = 212,545.98 : x - Step 2: Convert to fraction form
692,293.68/1,038,615.90 = 212,545.98/x - Step 3: Cross multiply
692,293.68x = 1,038,615.90 × 212,545.98 - Step 4: Simplify right side
692,293.68x = 220,753,634,309.08 - Step 5: Solve for x
x = 220,753,634,309.08/692,293.68 - Step 6: Final answer
x = 318,872.81
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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.