Finding the Fourth Proportional to 687,351.96, 948,534.12 and 385,539.48
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Solution
The fourth proportional to 687,351.96, 948,534.12 and 385,539.48 is: 532,037.98
Step by Step Solution
- Step 1: Write the proportion equation
687,351.96 : 948,534.12 = 385,539.48 : x - Step 2: Convert to fraction form
687,351.96/948,534.12 = 385,539.48/x - Step 3: Cross multiply
687,351.96x = 948,534.12 × 385,539.48 - Step 4: Simplify right side
687,351.96x = 365,697,351,387.06 - Step 5: Solve for x
x = 365,697,351,387.06/687,351.96 - Step 6: Final answer
x = 532,037.98
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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.