Finding the Fourth Proportional to 1,006,351.74, 1,389,340.71 and 667,280.70
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Solution
The fourth proportional to 1,006,351.74, 1,389,340.71 and 667,280.70 is: 921,228.84
Step by Step Solution
- Step 1: Write the proportion equation
1,006,351.74 : 1,389,340.71 = 667,280.70 : x - Step 2: Convert to fraction form
1,006,351.74/1,389,340.71 = 667,280.70/x - Step 3: Cross multiply
1,006,351.74x = 1,389,340.71 × 667,280.70 - Step 4: Simplify right side
1,006,351.74x = 927,080,241,507.30 - Step 5: Solve for x
x = 927,080,241,507.30/1,006,351.74 - Step 6: Final answer
x = 921,228.84
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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.