Finding the Fourth Proportional to 790,113.88, 1,185,293.94 and 257,511.34
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Solution
The fourth proportional to 790,113.88, 1,185,293.94 and 257,511.34 is: 386,307.14
Step by Step Solution
- Step 1: Write the proportion equation
790,113.88 : 1,185,293.94 = 257,511.34 : x - Step 2: Convert to fraction form
790,113.88/1,185,293.94 = 257,511.34/x - Step 3: Cross multiply
790,113.88x = 1,185,293.94 × 257,511.34 - Step 4: Simplify right side
790,113.88x = 305,226,630,783.28 - Step 5: Solve for x
x = 305,226,630,783.28/790,113.88 - Step 6: Final answer
x = 386,307.14
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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.