Finding the Fourth Proportional to 770,986.74, 1,064,060.88 and 465,228.15
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Solution
The fourth proportional to 770,986.74, 1,064,060.88 and 465,228.15 is: 642,074.69
Step by Step Solution
- Step 1: Write the proportion equation
770,986.74 : 1,064,060.88 = 465,228.15 : x - Step 2: Convert to fraction form
770,986.74/1,064,060.88 = 465,228.15/x - Step 3: Cross multiply
770,986.74x = 1,064,060.88 × 465,228.15 - Step 4: Simplify right side
770,986.74x = 495,031,074,689.77 - Step 5: Solve for x
x = 495,031,074,689.77/770,986.74 - Step 6: Final answer
x = 642,074.69
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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.