Finding the Fourth Proportional to 1,345,246.08, 1,855,389.12 and 861,855.84
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Solution
The fourth proportional to 1,345,246.08, 1,855,389.12 and 861,855.84 is: 1,188,688.06
Step by Step Solution
- Step 1: Write the proportion equation
1,345,246.08 : 1,855,389.12 = 861,855.84 : x - Step 2: Convert to fraction form
1,345,246.08/1,855,389.12 = 861,855.84/x - Step 3: Cross multiply
1,345,246.08x = 1,855,389.12 × 861,855.84 - Step 4: Simplify right side
1,345,246.08x = 1,599,077,948,544.46 - Step 5: Solve for x
x = 1,599,077,948,544.46/1,345,246.08 - Step 6: Final answer
x = 1,188,688.06
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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.