Finding the Fourth Proportional to 1,145,421.70, 1,580,731.62 and 655,544.99
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Solution
The fourth proportional to 1,145,421.70, 1,580,731.62 and 655,544.99 is: 904,680.52
Step by Step Solution
- Step 1: Write the proportion equation
1,145,421.70 : 1,580,731.62 = 655,544.99 : x - Step 2: Convert to fraction form
1,145,421.70/1,580,731.62 = 655,544.99/x - Step 3: Cross multiply
1,145,421.70x = 1,580,731.62 × 655,544.99 - Step 4: Simplify right side
1,145,421.70x = 1,036,240,694,025.58 - Step 5: Solve for x
x = 1,036,240,694,025.58/1,145,421.70 - Step 6: Final answer
x = 904,680.52
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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.