Finding the Fourth Proportional to 880,320.24, 1,320,567.84 and 319,398.48
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Solution
The fourth proportional to 880,320.24, 1,320,567.84 and 319,398.48 is: 479,129.46
Step by Step Solution
- Step 1: Write the proportion equation
880,320.24 : 1,320,567.84 = 319,398.48 : x - Step 2: Convert to fraction form
880,320.24/1,320,567.84 = 319,398.48/x - Step 3: Cross multiply
880,320.24x = 1,320,567.84 × 319,398.48 - Step 4: Simplify right side
880,320.24x = 421,787,360,832.88 - Step 5: Solve for x
x = 421,787,360,832.88/880,320.24 - Step 6: Final answer
x = 479,129.46
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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.