Finding the Fourth Proportional to 649,279.80, 973,919.70 and 294,985.80
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Solution
The fourth proportional to 649,279.80, 973,919.70 and 294,985.80 is: 442,478.70
Step by Step Solution
- Step 1: Write the proportion equation
649,279.80 : 973,919.70 = 294,985.80 : x - Step 2: Convert to fraction form
649,279.80/973,919.70 = 294,985.80/x - Step 3: Cross multiply
649,279.80x = 973,919.70 × 294,985.80 - Step 4: Simplify right side
649,279.80x = 287,292,481,840.26 - Step 5: Solve for x
x = 287,292,481,840.26/649,279.80 - Step 6: Final answer
x = 442,478.70
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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.