Finding the Fourth Proportional to 1,507,787.34, 2,080,762.68 and 819,459.18
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Solution
The fourth proportional to 1,507,787.34, 2,080,762.68 and 819,459.18 is: 1,130,862.45
Step by Step Solution
- Step 1: Write the proportion equation
1,507,787.34 : 2,080,762.68 = 819,459.18 : x - Step 2: Convert to fraction form
1,507,787.34/2,080,762.68 = 819,459.18/x - Step 3: Cross multiply
1,507,787.34x = 2,080,762.68 × 819,459.18 - Step 4: Simplify right side
1,507,787.34x = 1,705,100,079,527.40 - Step 5: Solve for x
x = 1,705,100,079,527.40/1,507,787.34 - Step 6: Final answer
x = 1,130,862.45
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1.5x scale
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.