Finding the Fourth Proportional to 713,120.98, 984,114.75 and 390,824.14
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Solution
The fourth proportional to 713,120.98, 984,114.75 and 390,824.14 is: 539,341.59
Step by Step Solution
- Step 1: Write the proportion equation
713,120.98 : 984,114.75 = 390,824.14 : x - Step 2: Convert to fraction form
713,120.98/984,114.75 = 390,824.14/x - Step 3: Cross multiply
713,120.98x = 984,114.75 × 390,824.14 - Step 4: Simplify right side
713,120.98x = 384,615,800,830.07 - Step 5: Solve for x
x = 384,615,800,830.07/713,120.98 - Step 6: Final answer
x = 539,341.59
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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.