Finding the Fourth Proportional to 811,208.81, 1,119,617.91 and 521,182.93
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Solution
The fourth proportional to 811,208.81, 1,119,617.91 and 521,182.93 is: 719,328.65
Step by Step Solution
- Step 1: Write the proportion equation
811,208.81 : 1,119,617.91 = 521,182.93 : x - Step 2: Convert to fraction form
811,208.81/1,119,617.91 = 521,182.93/x - Step 3: Cross multiply
811,208.81x = 1,119,617.91 × 521,182.93 - Step 4: Simplify right side
811,208.81x = 583,525,737,391.13 - Step 5: Solve for x
x = 583,525,737,391.13/811,208.81 - Step 6: Final answer
x = 719,328.65
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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.