Finding the Fourth Proportional to 1,078,357.84, 1,617,744.12 and 413,458
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Solution
The fourth proportional to 1,078,357.84, 1,617,744.12 and 413,458 is: 620,266.50
Step by Step Solution
- Step 1: Write the proportion equation
1,078,357.84 : 1,617,744.12 = 413,458 : x - Step 2: Convert to fraction form
1,078,357.84/1,617,744.12 = 413,458/x - Step 3: Cross multiply
1,078,357.84x = 1,617,744.12 × 413,458 - Step 4: Simplify right side
1,078,357.84x = 668,869,248,366.96 - Step 5: Solve for x
x = 668,869,248,366.96/1,078,357.84 - Step 6: Final answer
x = 620,266.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.