Finding the Fourth Proportional to 811,002.84, 1,119,135.78 and 448,398.24
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Solution
The fourth proportional to 811,002.84, 1,119,135.78 and 448,398.24 is: 618,762.96
Step by Step Solution
- Step 1: Write the proportion equation
811,002.84 : 1,119,135.78 = 448,398.24 : x - Step 2: Convert to fraction form
811,002.84/1,119,135.78 = 448,398.24/x - Step 3: Cross multiply
811,002.84x = 1,119,135.78 × 448,398.24 - Step 4: Simplify right side
811,002.84x = 501,818,514,073.03 - Step 5: Solve for x
x = 501,818,514,073.03/811,002.84 - Step 6: Final answer
x = 618,762.96
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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.