Finding the Fourth Proportional to 790,480.08, 1,090,865.12 and 427,903.84
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Solution
The fourth proportional to 790,480.08, 1,090,865.12 and 427,903.84 is: 590,508.71
Step by Step Solution
- Step 1: Write the proportion equation
790,480.08 : 1,090,865.12 = 427,903.84 : x - Step 2: Convert to fraction form
790,480.08/1,090,865.12 = 427,903.84/x - Step 3: Cross multiply
790,480.08x = 1,090,865.12 × 427,903.84 - Step 4: Simplify right side
790,480.08x = 466,785,373,770.06 - Step 5: Solve for x
x = 466,785,373,770.06/790,480.08 - Step 6: Final answer
x = 590,508.71
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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.