Finding the Fourth Proportional to 920,644.77, 1,381,556.99 and 447,071.79
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Solution
The fourth proportional to 920,644.77, 1,381,556.99 and 447,071.79 is: 670,894.11
Step by Step Solution
- Step 1: Write the proportion equation
920,644.77 : 1,381,556.99 = 447,071.79 : x - Step 2: Convert to fraction form
920,644.77/1,381,556.99 = 447,071.79/x - Step 3: Cross multiply
920,644.77x = 1,381,556.99 × 447,071.79 - Step 4: Simplify right side
920,644.77x = 617,655,156,506.31 - Step 5: Solve for x
x = 617,655,156,506.31/920,644.77 - Step 6: Final answer
x = 670,894.11
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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.