Finding the Fourth Proportional to 1,920,319.48, 2,878,457.34 and 640,584.28
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Solution
The fourth proportional to 1,920,319.48, 2,878,457.34 and 640,584.28 is: 960,201.96
Step by Step Solution
- Step 1: Write the proportion equation
1,920,319.48 : 2,878,457.34 = 640,584.28 : x - Step 2: Convert to fraction form
1,920,319.48/2,878,457.34 = 640,584.28/x - Step 3: Cross multiply
1,920,319.48x = 2,878,457.34 × 640,584.28 - Step 4: Simplify right side
1,920,319.48x = 1,843,894,522,654.62 - Step 5: Solve for x
x = 1,843,894,522,654.62/1,920,319.48 - Step 6: Final answer
x = 960,201.96
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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.