Finding the Fourth Proportional to 447,907.13, 671,328.30 and 312,237.95
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Solution
The fourth proportional to 447,907.13, 671,328.30 and 312,237.95 is: 467,985.79
Step by Step Solution
- Step 1: Write the proportion equation
447,907.13 : 671,328.30 = 312,237.95 : x - Step 2: Convert to fraction form
447,907.13/671,328.30 = 312,237.95/x - Step 3: Cross multiply
447,907.13x = 671,328.30 × 312,237.95 - Step 4: Simplify right side
447,907.13x = 209,614,172,168.99 - Step 5: Solve for x
x = 209,614,172,168.99/447,907.13 - Step 6: Final answer
x = 467,985.79
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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.