Finding the Fourth Proportional to 753,113.28, 1,129,430.64 and 247,557.60
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Solution
The fourth proportional to 753,113.28, 1,129,430.64 and 247,557.60 is: 371,257.75
Step by Step Solution
- Step 1: Write the proportion equation
753,113.28 : 1,129,430.64 = 247,557.60 : x - Step 2: Convert to fraction form
753,113.28/1,129,430.64 = 247,557.60/x - Step 3: Cross multiply
753,113.28x = 1,129,430.64 × 247,557.60 - Step 4: Simplify right side
753,113.28x = 279,599,138,604.86 - Step 5: Solve for x
x = 279,599,138,604.86/753,113.28 - Step 6: Final answer
x = 371,257.75
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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.