Finding the Fourth Proportional to 1,131,775.29, 1,561,860.36 and 615,534.08
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Solution
The fourth proportional to 1,131,775.29, 1,561,860.36 and 615,534.08 is: 849,442.71
Step by Step Solution
- Step 1: Write the proportion equation
1,131,775.29 : 1,561,860.36 = 615,534.08 : x - Step 2: Convert to fraction form
1,131,775.29/1,561,860.36 = 615,534.08/x - Step 3: Cross multiply
1,131,775.29x = 1,561,860.36 × 615,534.08 - Step 4: Simplify right side
1,131,775.29x = 961,378,271,971.77 - Step 5: Solve for x
x = 961,378,271,971.77/1,131,775.29 - Step 6: Final answer
x = 849,442.71
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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.