Finding the Fourth Proportional to 1,156,012.64, 1,595,261.40 and 639,735.46
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Solution
The fourth proportional to 1,156,012.64, 1,595,261.40 and 639,735.46 is: 882,814.99
Step by Step Solution
- Step 1: Write the proportion equation
1,156,012.64 : 1,595,261.40 = 639,735.46 : x - Step 2: Convert to fraction form
1,156,012.64/1,595,261.40 = 639,735.46/x - Step 3: Cross multiply
1,156,012.64x = 1,595,261.40 × 639,735.46 - Step 4: Simplify right side
1,156,012.64x = 1,020,545,285,549.24 - Step 5: Solve for x
x = 1,020,545,285,549.24/1,156,012.64 - Step 6: Final answer
x = 882,814.99
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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.