Finding the Fourth Proportional to 2,152,387.08, 2,970,261.90 and 1,185,519.24
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Solution
The fourth proportional to 2,152,387.08, 2,970,261.90 and 1,185,519.24 is: 1,635,998.78
Step by Step Solution
- Step 1: Write the proportion equation
2,152,387.08 : 2,970,261.90 = 1,185,519.24 : x - Step 2: Convert to fraction form
2,152,387.08/2,970,261.90 = 1,185,519.24/x - Step 3: Cross multiply
2,152,387.08x = 2,970,261.90 × 1,185,519.24 - Step 4: Simplify right side
2,152,387.08x = 3,521,302,630,288.96 - Step 5: Solve for x
x = 3,521,302,630,288.96/2,152,387.08 - Step 6: Final answer
x = 1,635,998.78
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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.