Finding the Fourth Proportional to 688,028.85, 949,511.33 and 382,106.63
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Solution
The fourth proportional to 688,028.85, 949,511.33 and 382,106.63 is: 527,324.65
Step by Step Solution
- Step 1: Write the proportion equation
688,028.85 : 949,511.33 = 382,106.63 : x - Step 2: Convert to fraction form
688,028.85/949,511.33 = 382,106.63/x - Step 3: Cross multiply
688,028.85x = 949,511.33 × 382,106.63 - Step 4: Simplify right side
688,028.85x = 362,814,574,453.12 - Step 5: Solve for x
x = 362,814,574,453.12/688,028.85 - Step 6: Final answer
x = 527,324.65
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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.