Finding the Fourth Proportional to 587,533.84, 810,808.68 and 319,279.12
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Solution
The fourth proportional to 587,533.84, 810,808.68 and 319,279.12 is: 440,611.70
Step by Step Solution
- Step 1: Write the proportion equation
587,533.84 : 810,808.68 = 319,279.12 : x - Step 2: Convert to fraction form
587,533.84/810,808.68 = 319,279.12/x - Step 3: Cross multiply
587,533.84x = 810,808.68 × 319,279.12 - Step 4: Simplify right side
587,533.84x = 258,874,281,838.76 - Step 5: Solve for x
x = 258,874,281,838.76/587,533.84 - Step 6: Final answer
x = 440,611.70
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1.5x scale
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.