Finding the Fourth Proportional to 2,148,134.23, 2,964,420.99 and 1,230,660.40
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Solution
The fourth proportional to 2,148,134.23, 2,964,420.99 and 1,230,660.40 is: 1,698,308.92
Step by Step Solution
- Step 1: Write the proportion equation
2,148,134.23 : 2,964,420.99 = 1,230,660.40 : x - Step 2: Convert to fraction form
2,148,134.23/2,964,420.99 = 1,230,660.40/x - Step 3: Cross multiply
2,148,134.23x = 2,964,420.99 × 1,230,660.40 - Step 4: Simplify right side
2,148,134.23x = 3,648,195,521,321.80 - Step 5: Solve for x
x = 3,648,195,521,321.80/2,148,134.23 - Step 6: Final answer
x = 1,698,308.92
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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.