Finding the Fourth Proportional to 1,430,428.60, 2,144,549.40 and 720,965.80
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Solution
The fourth proportional to 1,430,428.60, 2,144,549.40 and 720,965.80 is: 1,080,897.55
Step by Step Solution
- Step 1: Write the proportion equation
1,430,428.60 : 2,144,549.40 = 720,965.80 : x - Step 2: Convert to fraction form
1,430,428.60/2,144,549.40 = 720,965.80/x - Step 3: Cross multiply
1,430,428.60x = 2,144,549.40 × 720,965.80 - Step 4: Simplify right side
1,430,428.60x = 1,546,146,773,810.52 - Step 5: Solve for x
x = 1,546,146,773,810.52/1,430,428.60 - Step 6: Final answer
x = 1,080,897.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.