Finding the Fourth Proportional to 1,020,442.70, 1,407,739.76 and 657,982.99
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Solution
The fourth proportional to 1,020,442.70, 1,407,739.76 and 657,982.99 is: 907,712.71
Step by Step Solution
- Step 1: Write the proportion equation
1,020,442.70 : 1,407,739.76 = 657,982.99 : x - Step 2: Convert to fraction form
1,020,442.70/1,407,739.76 = 657,982.99/x - Step 3: Cross multiply
1,020,442.70x = 1,407,739.76 × 657,982.99 - Step 4: Simplify right side
1,020,442.70x = 926,268,813,136.77 - Step 5: Solve for x
x = 926,268,813,136.77/1,020,442.70 - Step 6: Final answer
x = 907,712.71
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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.