Finding the Fourth Proportional to 778,089.68, 1,073,742.37 and 433,936.07
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Solution
The fourth proportional to 778,089.68, 1,073,742.37 and 433,936.07 is: 598,819.85
Step by Step Solution
- Step 1: Write the proportion equation
778,089.68 : 1,073,742.37 = 433,936.07 : x - Step 2: Convert to fraction form
778,089.68/1,073,742.37 = 433,936.07/x - Step 3: Cross multiply
778,089.68x = 1,073,742.37 × 433,936.07 - Step 4: Simplify right side
778,089.68x = 465,935,544,230.29 - Step 5: Solve for x
x = 465,935,544,230.29/778,089.68 - Step 6: Final answer
x = 598,819.85
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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.