Finding the Fourth Proportional to 621,495.26, 930,747.52 and 421,207.98
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Solution
The fourth proportional to 621,495.26, 930,747.52 and 421,207.98 is: 630,798.51
Step by Step Solution
- Step 1: Write the proportion equation
621,495.26 : 930,747.52 = 421,207.98 : x - Step 2: Convert to fraction form
621,495.26/930,747.52 = 421,207.98/x - Step 3: Cross multiply
621,495.26x = 930,747.52 × 421,207.98 - Step 4: Simplify right side
621,495.26x = 392,038,282,789.21 - Step 5: Solve for x
x = 392,038,282,789.21/621,495.26 - Step 6: Final answer
x = 630,798.51
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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.