Finding the Fourth Proportional to 880,209.12, 1,320,313.62 and 480,631.88
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Solution
The fourth proportional to 880,209.12, 1,320,313.62 and 480,631.88 is: 720,947.79
Step by Step Solution
- Step 1: Write the proportion equation
880,209.12 : 1,320,313.62 = 480,631.88 : x - Step 2: Convert to fraction form
880,209.12/1,320,313.62 = 480,631.88/x - Step 3: Cross multiply
880,209.12x = 1,320,313.62 × 480,631.88 - Step 4: Simplify right side
880,209.12x = 634,584,817,370.21 - Step 5: Solve for x
x = 634,584,817,370.21/880,209.12 - Step 6: Final answer
x = 720,947.79
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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.