Finding the Fourth Proportional to 775,521.84, 1,070,208.84 and 431,354.16
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Solution
The fourth proportional to 775,521.84, 1,070,208.84 and 431,354.16 is: 595,262.46
Step by Step Solution
- Step 1: Write the proportion equation
775,521.84 : 1,070,208.84 = 431,354.16 : x - Step 2: Convert to fraction form
775,521.84/1,070,208.84 = 431,354.16/x - Step 3: Cross multiply
775,521.84x = 1,070,208.84 × 431,354.16 - Step 4: Simplify right side
775,521.84x = 461,639,035,202.77 - Step 5: Solve for x
x = 461,639,035,202.77/775,521.84 - Step 6: Final answer
x = 595,262.46
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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.