Finding the Fourth Proportional to 485,813.21, 670,423.12 and 270,967.12
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Solution
The fourth proportional to 485,813.21, 670,423.12 and 270,967.12 is: 373,935.12
Step by Step Solution
- Step 1: Write the proportion equation
485,813.21 : 670,423.12 = 270,967.12 : x - Step 2: Convert to fraction form
485,813.21/670,423.12 = 270,967.12/x - Step 3: Cross multiply
485,813.21x = 670,423.12 × 270,967.12 - Step 4: Simplify right side
485,813.21x = 181,662,619,654.34 - Step 5: Solve for x
x = 181,662,619,654.34/485,813.21 - Step 6: Final answer
x = 373,935.12
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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.