Finding the Fourth Proportional to 811,006.35, 1,119,140.68 and 448,401.75
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Solution
The fourth proportional to 811,006.35, 1,119,140.68 and 448,401.75 is: 618,767.83
Step by Step Solution
- Step 1: Write the proportion equation
811,006.35 : 1,119,140.68 = 448,401.75 : x - Step 2: Convert to fraction form
811,006.35/1,119,140.68 = 448,401.75/x - Step 3: Cross multiply
811,006.35x = 1,119,140.68 × 448,401.75 - Step 4: Simplify right side
811,006.35x = 501,824,637,166.18 - Step 5: Solve for x
x = 501,824,637,166.18/811,006.35 - Step 6: Final answer
x = 618,767.83
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1.5x scale
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.