Finding the Fourth Proportional to 611,798.63, 917,791.02 and 312,115.55
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Solution
The fourth proportional to 611,798.63, 917,791.02 and 312,115.55 is: 468,220.80
Step by Step Solution
- Step 1: Write the proportion equation
611,798.63 : 917,791.02 = 312,115.55 : x - Step 2: Convert to fraction form
611,798.63/917,791.02 = 312,115.55/x - Step 3: Cross multiply
611,798.63x = 917,791.02 × 312,115.55 - Step 4: Simplify right side
611,798.63x = 286,456,844,403.41 - Step 5: Solve for x
x = 286,456,844,403.41/611,798.63 - Step 6: Final answer
x = 468,220.80
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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.