Finding the Fourth Proportional to 862,809.59, 1,190,681.21 and 500,447.99
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Solution
The fourth proportional to 862,809.59, 1,190,681.21 and 500,447.99 is: 690,620.53
Step by Step Solution
- Step 1: Write the proportion equation
862,809.59 : 1,190,681.21 = 500,447.99 : x - Step 2: Convert to fraction form
862,809.59/1,190,681.21 = 500,447.99/x - Step 3: Cross multiply
862,809.59x = 1,190,681.21 × 500,447.99 - Step 4: Simplify right side
862,809.59x = 595,874,018,275.27 - Step 5: Solve for x
x = 595,874,018,275.27/862,809.59 - Step 6: Final answer
x = 690,620.53
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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.