Finding the Fourth Proportional to 2,165,346.84, 2,987,763.66 and 1,198,431.48
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Solution
The fourth proportional to 2,165,346.84, 2,987,763.66 and 1,198,431.48 is: 1,653,605.77
Step by Step Solution
- Step 1: Write the proportion equation
2,165,346.84 : 2,987,763.66 = 1,198,431.48 : x - Step 2: Convert to fraction form
2,165,346.84/2,987,763.66 = 1,198,431.48/x - Step 3: Cross multiply
2,165,346.84x = 2,987,763.66 × 1,198,431.48 - Step 4: Simplify right side
2,165,346.84x = 3,580,630,024,944.02 - Step 5: Solve for x
x = 3,580,630,024,944.02/2,165,346.84 - Step 6: Final answer
x = 1,653,605.77
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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.