Finding the Fourth Proportional to 847,997.98, 1,271,840.16 and 386,267.08
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Solution
The fourth proportional to 847,997.98, 1,271,840.16 and 386,267.08 is: 579,329.19
Step by Step Solution
- Step 1: Write the proportion equation
847,997.98 : 1,271,840.16 = 386,267.08 : x - Step 2: Convert to fraction form
847,997.98/1,271,840.16 = 386,267.08/x - Step 3: Cross multiply
847,997.98x = 1,271,840.16 × 386,267.08 - Step 4: Simplify right side
847,997.98x = 491,269,984,829.93 - Step 5: Solve for x
x = 491,269,984,829.93/847,997.98 - Step 6: Final answer
x = 579,329.19
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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.