Finding the Fourth Proportional to 811,402.84, 1,119,649.72 and 448,769.08
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Solution
The fourth proportional to 811,402.84, 1,119,649.72 and 448,769.08 is: 619,253.66
Step by Step Solution
- Step 1: Write the proportion equation
811,402.84 : 1,119,649.72 = 448,769.08 : x - Step 2: Convert to fraction form
811,402.84/1,119,649.72 = 448,769.08/x - Step 3: Cross multiply
811,402.84x = 1,119,649.72 × 448,769.08 - Step 4: Simplify right side
811,402.84x = 502,464,174,766.66 - Step 5: Solve for x
x = 502,464,174,766.66/811,402.84 - Step 6: Final answer
x = 619,253.66
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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.