Finding the Fourth Proportional to 991,057.62, 1,367,697.04 and 555,482.95
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Solution
The fourth proportional to 991,057.62, 1,367,697.04 and 555,482.95 is: 766,587.50
Step by Step Solution
- Step 1: Write the proportion equation
991,057.62 : 1,367,697.04 = 555,482.95 : x - Step 2: Convert to fraction form
991,057.62/1,367,697.04 = 555,482.95/x - Step 3: Cross multiply
991,057.62x = 1,367,697.04 × 555,482.95 - Step 4: Simplify right side
991,057.62x = 759,732,381,526.60 - Step 5: Solve for x
x = 759,732,381,526.60/991,057.62 - Step 6: Final answer
x = 766,587.50
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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.