Finding the Fourth Proportional to 2,118,115.80, 2,923,019.40 and 1,151,248.44
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Solution
The fourth proportional to 2,118,115.80, 2,923,019.40 and 1,151,248.44 is: 1,588,733.50
Step by Step Solution
- Step 1: Write the proportion equation
2,118,115.80 : 2,923,019.40 = 1,151,248.44 : x - Step 2: Convert to fraction form
2,118,115.80/2,923,019.40 = 1,151,248.44/x - Step 3: Cross multiply
2,118,115.80x = 2,923,019.40 × 1,151,248.44 - Step 4: Simplify right side
2,118,115.80x = 3,365,121,524,339.74 - Step 5: Solve for x
x = 3,365,121,524,339.74/2,118,115.80 - Step 6: Final answer
x = 1,588,733.50
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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.