Finding the Fourth Proportional to 578,891.12, 798,459.24 and 361,209.44
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Solution
The fourth proportional to 578,891.12, 798,459.24 and 361,209.44 is: 498,212.88
Step by Step Solution
- Step 1: Write the proportion equation
578,891.12 : 798,459.24 = 361,209.44 : x - Step 2: Convert to fraction form
578,891.12/798,459.24 = 361,209.44/x - Step 3: Cross multiply
578,891.12x = 798,459.24 × 361,209.44 - Step 4: Simplify right side
578,891.12x = 288,411,014,943.23 - Step 5: Solve for x
x = 288,411,014,943.23/578,891.12 - Step 6: Final answer
x = 498,212.88
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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.