Finding the Fourth Proportional to 448,392.08, 618,785.84 and 247,195.28
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Solution
The fourth proportional to 448,392.08, 618,785.84 and 247,195.28 is: 341,132.12
Step by Step Solution
- Step 1: Write the proportion equation
448,392.08 : 618,785.84 = 247,195.28 : x - Step 2: Convert to fraction form
448,392.08/618,785.84 = 247,195.28/x - Step 3: Cross multiply
448,392.08x = 618,785.84 × 247,195.28 - Step 4: Simplify right side
448,392.08x = 152,960,938,978.84 - Step 5: Solve for x
x = 152,960,938,978.84/448,392.08 - Step 6: Final answer
x = 341,132.12
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.