Finding the Fourth Proportional to 745,586.98, 1,028,939.16 and 423,327.09
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Solution
The fourth proportional to 745,586.98, 1,028,939.16 and 423,327.09 is: 584,207.92
Step by Step Solution
- Step 1: Write the proportion equation
745,586.98 : 1,028,939.16 = 423,327.09 : x - Step 2: Convert to fraction form
745,586.98/1,028,939.16 = 423,327.09/x - Step 3: Cross multiply
745,586.98x = 1,028,939.16 × 423,327.09 - Step 4: Simplify right side
745,586.98x = 435,577,820,389.84 - Step 5: Solve for x
x = 435,577,820,389.84/745,586.98 - Step 6: Final answer
x = 584,207.92
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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.