Finding the Fourth Proportional to 915,837.84, 1,263,837.40 and 507,873.88
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Solution
The fourth proportional to 915,837.84, 1,263,837.40 and 507,873.88 is: 700,855.52
Step by Step Solution
- Step 1: Write the proportion equation
915,837.84 : 1,263,837.40 = 507,873.88 : x - Step 2: Convert to fraction form
915,837.84/1,263,837.40 = 507,873.88/x - Step 3: Cross multiply
915,837.84x = 1,263,837.40 × 507,873.88 - Step 4: Simplify right side
915,837.84x = 641,870,004,027.11 - Step 5: Solve for x
x = 641,870,004,027.11/915,837.84 - Step 6: Final answer
x = 700,855.52
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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.