Finding the Fourth Proportional to 1,863,315.36, 2,571,233.76 and 1,047,389.28
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Solution
The fourth proportional to 1,863,315.36, 2,571,233.76 and 1,047,389.28 is: 1,445,317.70
Step by Step Solution
- Step 1: Write the proportion equation
1,863,315.36 : 2,571,233.76 = 1,047,389.28 : x - Step 2: Convert to fraction form
1,863,315.36/2,571,233.76 = 1,047,389.28/x - Step 3: Cross multiply
1,863,315.36x = 2,571,233.76 × 1,047,389.28 - Step 4: Simplify right side
1,863,315.36x = 2,693,082,676,598.09 - Step 5: Solve for x
x = 2,693,082,676,598.09/1,863,315.36 - Step 6: Final answer
x = 1,445,317.70
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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.