Finding the Fourth Proportional to 1,442,417.13, 1,990,402.06 and 797,823.45
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Solution
The fourth proportional to 1,442,417.13, 1,990,402.06 and 797,823.45 is: 1,100,922.48
Step by Step Solution
- Step 1: Write the proportion equation
1,442,417.13 : 1,990,402.06 = 797,823.45 : x - Step 2: Convert to fraction form
1,442,417.13/1,990,402.06 = 797,823.45/x - Step 3: Cross multiply
1,442,417.13x = 1,990,402.06 × 797,823.45 - Step 4: Simplify right side
1,442,417.13x = 1,587,989,438,396.31 - Step 5: Solve for x
x = 1,587,989,438,396.31/1,442,417.13 - Step 6: Final answer
x = 1,100,922.48
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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.