Finding the Fourth Proportional to 912,421.63, 1,368,828.06 and 272,775.43
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Solution
The fourth proportional to 912,421.63, 1,368,828.06 and 272,775.43 is: 409,221.63
Step by Step Solution
- Step 1: Write the proportion equation
912,421.63 : 1,368,828.06 = 272,775.43 : x - Step 2: Convert to fraction form
912,421.63/1,368,828.06 = 272,775.43/x - Step 3: Cross multiply
912,421.63x = 1,368,828.06 × 272,775.43 - Step 4: Simplify right side
912,421.63x = 373,382,662,662.57 - Step 5: Solve for x
x = 373,382,662,662.57/912,421.63 - Step 6: Final answer
x = 409,221.63
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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.