Finding the Fourth Proportional to 487,279.80, 730,919.70 and 369,181.80
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Solution
The fourth proportional to 487,279.80, 730,919.70 and 369,181.80 is: 553,772.70
Step by Step Solution
- Step 1: Write the proportion equation
487,279.80 : 730,919.70 = 369,181.80 : x - Step 2: Convert to fraction form
487,279.80/730,919.70 = 369,181.80/x - Step 3: Cross multiply
487,279.80x = 730,919.70 × 369,181.80 - Step 4: Simplify right side
487,279.80x = 269,842,250,501.46 - Step 5: Solve for x
x = 269,842,250,501.46/487,279.80 - Step 6: Final answer
x = 553,772.70
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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.