Finding the Fourth Proportional to 1,507,622.31, 2,080,539.05 and 819,307.80
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Solution
The fourth proportional to 1,507,622.31, 2,080,539.05 and 819,307.80 is: 1,130,655.77
Step by Step Solution
- Step 1: Write the proportion equation
1,507,622.31 : 2,080,539.05 = 819,307.80 : x - Step 2: Convert to fraction form
1,507,622.31/2,080,539.05 = 819,307.80/x - Step 3: Cross multiply
1,507,622.31x = 2,080,539.05 × 819,307.80 - Step 4: Simplify right side
1,507,622.31x = 1,704,601,867,773.05 - Step 5: Solve for x
x = 1,704,601,867,773.05/1,507,622.31 - Step 6: Final answer
x = 1,130,655.77
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.