Finding the Fourth Proportional to 887,636.08, 1,224,936.12 and 485,228.08
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Solution
The fourth proportional to 887,636.08, 1,224,936.12 and 485,228.08 is: 669,613.84
Step by Step Solution
- Step 1: Write the proportion equation
887,636.08 : 1,224,936.12 = 485,228.08 : x - Step 2: Convert to fraction form
887,636.08/1,224,936.12 = 485,228.08/x - Step 3: Cross multiply
887,636.08x = 1,224,936.12 × 485,228.08 - Step 4: Simplify right side
887,636.08x = 594,373,401,630.25 - Step 5: Solve for x
x = 594,373,401,630.25/887,636.08 - Step 6: Final answer
x = 669,613.84
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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.