Finding the Fourth Proportional to 3,720,128.48, 5,580,257.52 and 1,024,439.84
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Solution
The fourth proportional to 3,720,128.48, 5,580,257.52 and 1,024,439.84 is: 1,536,677.60
Step by Step Solution
- Step 1: Write the proportion equation
3,720,128.48 : 5,580,257.52 = 1,024,439.84 : x - Step 2: Convert to fraction form
3,720,128.48/5,580,257.52 = 1,024,439.84/x - Step 3: Cross multiply
3,720,128.48x = 5,580,257.52 × 1,024,439.84 - Step 4: Simplify right side
3,720,128.48x = 5,716,638,120,947.60 - Step 5: Solve for x
x = 5,716,638,120,947.60/3,720,128.48 - Step 6: Final answer
x = 1,536,677.60
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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.