Finding the Fourth Proportional to 1,405,120.84, 2,107,686.30 and 340,160.84
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Solution
The fourth proportional to 1,405,120.84, 2,107,686.30 and 340,160.84 is: 510,242.48
Step by Step Solution
- Step 1: Write the proportion equation
1,405,120.84 : 2,107,686.30 = 340,160.84 : x - Step 2: Convert to fraction form
1,405,120.84/2,107,686.30 = 340,160.84/x - Step 3: Cross multiply
1,405,120.84x = 2,107,686.30 × 340,160.84 - Step 4: Simplify right side
1,405,120.84x = 716,952,342,264.49 - Step 5: Solve for x
x = 716,952,342,264.49/1,405,120.84 - Step 6: Final answer
x = 510,242.48
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1.5x scale
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.