Finding the Fourth Proportional to 620,284.41, 856,013.13 and 348,400.26
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Solution
The fourth proportional to 620,284.41, 856,013.13 and 348,400.26 is: 480,803.95
Step by Step Solution
- Step 1: Write the proportion equation
620,284.41 : 856,013.13 = 348,400.26 : x - Step 2: Convert to fraction form
620,284.41/856,013.13 = 348,400.26/x - Step 3: Cross multiply
620,284.41x = 856,013.13 × 348,400.26 - Step 4: Simplify right side
620,284.41x = 298,235,197,055.41 - Step 5: Solve for x
x = 298,235,197,055.41/620,284.41 - Step 6: Final answer
x = 480,803.95
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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.