Finding the Fourth Proportional to 1,259,207.20, 1,889,271.60 and 511,328.80
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Solution
The fourth proportional to 1,259,207.20, 1,889,271.60 and 511,328.80 is: 767,180.32
Step by Step Solution
- Step 1: Write the proportion equation
1,259,207.20 : 1,889,271.60 = 511,328.80 : x - Step 2: Convert to fraction form
1,259,207.20/1,889,271.60 = 511,328.80/x - Step 3: Cross multiply
1,259,207.20x = 1,889,271.60 × 511,328.80 - Step 4: Simplify right side
1,259,207.20x = 966,038,980,102.08 - Step 5: Solve for x
x = 966,038,980,102.08/1,259,207.20 - Step 6: Final answer
x = 767,180.32
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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.