Finding the Fourth Proportional to 811,088.63, 1,119,309.61 and 448,537.08
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Solution
The fourth proportional to 811,088.63, 1,119,309.61 and 448,537.08 is: 618,985.21
Step by Step Solution
- Step 1: Write the proportion equation
811,088.63 : 1,119,309.61 = 448,537.08 : x - Step 2: Convert to fraction form
811,088.63/1,119,309.61 = 448,537.08/x - Step 3: Cross multiply
811,088.63x = 1,119,309.61 × 448,537.08 - Step 4: Simplify right side
811,088.63x = 502,051,868,002.41 - Step 5: Solve for x
x = 502,051,868,002.41/811,088.63 - Step 6: Final answer
x = 618,985.21
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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.