Finding the Fourth Proportional to 545,461.68, 817,918.74 and 317,830.92
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Solution
The fourth proportional to 545,461.68, 817,918.74 and 317,830.92 is: 476,586.85
Step by Step Solution
- Step 1: Write the proportion equation
545,461.68 : 817,918.74 = 317,830.92 : x - Step 2: Convert to fraction form
545,461.68/817,918.74 = 317,830.92/x - Step 3: Cross multiply
545,461.68x = 817,918.74 × 317,830.92 - Step 4: Simplify right side
545,461.68x = 259,959,865,619.44 - Step 5: Solve for x
x = 259,959,865,619.44/545,461.68 - Step 6: Final answer
x = 476,586.85
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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.