Finding the Fourth Proportional to 718,257.78, 1,077,235.40 and 212,823.05
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Solution
The fourth proportional to 718,257.78, 1,077,235.40 and 212,823.05 is: 319,189.75
Step by Step Solution
- Step 1: Write the proportion equation
718,257.78 : 1,077,235.40 = 212,823.05 : x - Step 2: Convert to fraction form
718,257.78/1,077,235.40 = 212,823.05/x - Step 3: Cross multiply
718,257.78x = 1,077,235.40 × 212,823.05 - Step 4: Simplify right side
718,257.78x = 229,260,518,541.85 - Step 5: Solve for x
x = 229,260,518,541.85/718,257.78 - Step 6: Final answer
x = 319,189.75
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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.