Finding the Fourth Proportional to 612,089.80, 918,134.70 and 363,257.80
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Solution
The fourth proportional to 612,089.80, 918,134.70 and 363,257.80 is: 544,886.70
Step by Step Solution
- Step 1: Write the proportion equation
612,089.80 : 918,134.70 = 363,257.80 : x - Step 2: Convert to fraction form
612,089.80/918,134.70 = 363,257.80/x - Step 3: Cross multiply
612,089.80x = 918,134.70 × 363,257.80 - Step 4: Simplify right side
612,089.80x = 333,519,591,225.66 - Step 5: Solve for x
x = 333,519,591,225.66/612,089.80 - Step 6: Final answer
x = 544,886.70
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1.5x scale
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.