Finding the Fourth Proportional to 903,532.20, 1,246,862.80 and 516,343.18
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Solution
The fourth proportional to 903,532.20, 1,246,862.80 and 516,343.18 is: 712,546.95
Step by Step Solution
- Step 1: Write the proportion equation
903,532.20 : 1,246,862.80 = 516,343.18 : x - Step 2: Convert to fraction form
903,532.20/1,246,862.80 = 516,343.18/x - Step 3: Cross multiply
903,532.20x = 1,246,862.80 × 516,343.18 - Step 4: Simplify right side
903,532.20x = 643,809,109,276.16 - Step 5: Solve for x
x = 643,809,109,276.16/903,532.20 - Step 6: Final answer
x = 712,546.95
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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.