Finding the Fourth Proportional to 890,271.12, 1,228,379.88 and 527,513.76
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Solution
The fourth proportional to 890,271.12, 1,228,379.88 and 527,513.76 is: 727,853.88
Step by Step Solution
- Step 1: Write the proportion equation
890,271.12 : 1,228,379.88 = 527,513.76 : x - Step 2: Convert to fraction form
890,271.12/1,228,379.88 = 527,513.76/x - Step 3: Cross multiply
890,271.12x = 1,228,379.88 × 527,513.76 - Step 4: Simplify right side
890,271.12x = 647,987,289,207.15 - Step 5: Solve for x
x = 647,987,289,207.15/890,271.12 - Step 6: Final answer
x = 727,853.88
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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.