Finding the Fourth Proportional to 542,801.80, 814,202.70 and 385,337.80
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Solution
The fourth proportional to 542,801.80, 814,202.70 and 385,337.80 is: 578,006.70
Step by Step Solution
- Step 1: Write the proportion equation
542,801.80 : 814,202.70 = 385,337.80 : x - Step 2: Convert to fraction form
542,801.80/814,202.70 = 385,337.80/x - Step 3: Cross multiply
542,801.80x = 814,202.70 × 385,337.80 - Step 4: Simplify right side
542,801.80x = 313,743,077,172.06 - Step 5: Solve for x
x = 313,743,077,172.06/542,801.80 - Step 6: Final answer
x = 578,006.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.