Finding the Fourth Proportional to 1,129,857.13, 1,559,197.51 and 613,607.41
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Solution
The fourth proportional to 1,129,857.13, 1,559,197.51 and 613,607.41 is: 846,775.33
Step by Step Solution
- Step 1: Write the proportion equation
1,129,857.13 : 1,559,197.51 = 613,607.41 : x - Step 2: Convert to fraction form
1,129,857.13/1,559,197.51 = 613,607.41/x - Step 3: Cross multiply
1,129,857.13x = 1,559,197.51 × 613,607.41 - Step 4: Simplify right side
1,129,857.13x = 956,735,145,789.55 - Step 5: Solve for x
x = 956,735,145,789.55/1,129,857.13 - Step 6: Final answer
x = 846,775.33
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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.