Finding the Fourth Proportional to 643,140.55, 964,718.97 and 243,674.02
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Solution
The fourth proportional to 643,140.55, 964,718.97 and 243,674.02 is: 365,514.11
Step by Step Solution
- Step 1: Write the proportion equation
643,140.55 : 964,718.97 = 243,674.02 : x - Step 2: Convert to fraction form
643,140.55/964,718.97 = 243,674.02/x - Step 3: Cross multiply
643,140.55x = 964,718.97 × 243,674.02 - Step 4: Simplify right side
643,140.55x = 235,076,943,548.20 - Step 5: Solve for x
x = 235,076,943,548.20/643,140.55 - Step 6: Final answer
x = 365,514.11
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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.