Finding the Fourth Proportional to 1,046,872.77, 1,444,647.99 and 639,656.20
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Solution
The fourth proportional to 1,046,872.77, 1,444,647.99 and 639,656.20 is: 882,703.30
Step by Step Solution
- Step 1: Write the proportion equation
1,046,872.77 : 1,444,647.99 = 639,656.20 : x - Step 2: Convert to fraction form
1,046,872.77/1,444,647.99 = 639,656.20/x - Step 3: Cross multiply
1,046,872.77x = 1,444,647.99 × 639,656.20 - Step 4: Simplify right side
1,046,872.77x = 924,078,043,621.04 - Step 5: Solve for x
x = 924,078,043,621.04/1,046,872.77 - Step 6: Final answer
x = 882,703.30
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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.