Finding the Fourth Proportional to 447,848.46, 617,985.18 and 275,739.12
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Solution
The fourth proportional to 447,848.46, 617,985.18 and 275,739.12 is: 380,491.85
Step by Step Solution
- Step 1: Write the proportion equation
447,848.46 : 617,985.18 = 275,739.12 : x - Step 2: Convert to fraction form
447,848.46/617,985.18 = 275,739.12/x - Step 3: Cross multiply
447,848.46x = 617,985.18 × 275,739.12 - Step 4: Simplify right side
447,848.46x = 170,402,689,706.24 - Step 5: Solve for x
x = 170,402,689,706.24/447,848.46 - Step 6: Final answer
x = 380,491.85
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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.