Finding the Fourth Proportional to 520,331.99, 780,331.86 and 165,262.95
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Solution
The fourth proportional to 520,331.99, 780,331.86 and 165,262.95 is: 247,841.66
Step by Step Solution
- Step 1: Write the proportion equation
520,331.99 : 780,331.86 = 165,262.95 : x - Step 2: Convert to fraction form
520,331.99/780,331.86 = 165,262.95/x - Step 3: Cross multiply
520,331.99x = 780,331.86 × 165,262.95 - Step 4: Simplify right side
520,331.99x = 128,959,945,162.59 - Step 5: Solve for x
x = 128,959,945,162.59/520,331.99 - Step 6: Final answer
x = 247,841.66
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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.