Finding the Fourth Proportional to 811,056.16, 1,119,197.64 and 448,484.80
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Solution
The fourth proportional to 811,056.16, 1,119,197.64 and 448,484.80 is: 618,875.92
Step by Step Solution
- Step 1: Write the proportion equation
811,056.16 : 1,119,197.64 = 448,484.80 : x - Step 2: Convert to fraction form
811,056.16/1,119,197.64 = 448,484.80/x - Step 3: Cross multiply
811,056.16x = 1,119,197.64 × 448,484.80 - Step 4: Simplify right side
811,056.16x = 501,943,129,735.87 - Step 5: Solve for x
x = 501,943,129,735.87/811,056.16 - Step 6: Final answer
x = 618,875.92
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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.