Finding the Fourth Proportional to 861,202.60, 1,288,644.47 and 718,696.08
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Solution
The fourth proportional to 861,202.60, 1,288,644.47 and 718,696.08 is: 1,075,407.50
Step by Step Solution
- Step 1: Write the proportion equation
861,202.60 : 1,288,644.47 = 718,696.08 : x - Step 2: Convert to fraction form
861,202.60/1,288,644.47 = 718,696.08/x - Step 3: Cross multiply
861,202.60x = 1,288,644.47 × 718,696.08 - Step 4: Simplify right side
861,202.60x = 926,143,732,246.97 - Step 5: Solve for x
x = 926,143,732,246.97/861,202.60 - Step 6: Final answer
x = 1,075,407.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.