Finding the Fourth Proportional to 439,004.58, 605,813.88 and 257,713.62
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Solution
The fourth proportional to 439,004.58, 605,813.88 and 257,713.62 is: 355,637.49
Step by Step Solution
- Step 1: Write the proportion equation
439,004.58 : 605,813.88 = 257,713.62 : x - Step 2: Convert to fraction form
439,004.58/605,813.88 = 257,713.62/x - Step 3: Cross multiply
439,004.58x = 605,813.88 × 257,713.62 - Step 4: Simplify right side
439,004.58x = 156,126,488,061.05 - Step 5: Solve for x
x = 156,126,488,061.05/439,004.58 - Step 6: Final answer
x = 355,637.49
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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.