Finding the Fourth Proportional to 939,805.81, 1,407,324.07 and 787,602.76
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Solution
The fourth proportional to 939,805.81, 1,407,324.07 and 787,602.76 is: 1,179,405.69
Step by Step Solution
- Step 1: Write the proportion equation
939,805.81 : 1,407,324.07 = 787,602.76 : x - Step 2: Convert to fraction form
939,805.81/1,407,324.07 = 787,602.76/x - Step 3: Cross multiply
939,805.81x = 1,407,324.07 × 787,602.76 - Step 4: Simplify right side
939,805.81x = 1,108,412,321,746.43 - Step 5: Solve for x
x = 1,108,412,321,746.43/939,805.81 - Step 6: Final answer
x = 1,179,405.69
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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.