Finding the Fourth Proportional to 1,018,397.28, 1,405,389.12 and 559,541.44
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Solution
The fourth proportional to 1,018,397.28, 1,405,389.12 and 559,541.44 is: 772,167.67
Step by Step Solution
- Step 1: Write the proportion equation
1,018,397.28 : 1,405,389.12 = 559,541.44 : x - Step 2: Convert to fraction form
1,018,397.28/1,405,389.12 = 559,541.44/x - Step 3: Cross multiply
1,018,397.28x = 1,405,389.12 × 559,541.44 - Step 4: Simplify right side
1,018,397.28x = 786,373,451,965.13 - Step 5: Solve for x
x = 786,373,451,965.13/1,018,397.28 - Step 6: Final answer
x = 772,167.67
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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.