Finding the Fourth Proportional to 770,215.68, 1,062,815.86 and 425,996.93
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Solution
The fourth proportional to 770,215.68, 1,062,815.86 and 425,996.93 is: 587,830.53
Step by Step Solution
- Step 1: Write the proportion equation
770,215.68 : 1,062,815.86 = 425,996.93 : x - Step 2: Convert to fraction form
770,215.68/1,062,815.86 = 425,996.93/x - Step 3: Cross multiply
770,215.68x = 1,062,815.86 × 425,996.93 - Step 4: Simplify right side
770,215.68x = 452,756,293,515.31 - Step 5: Solve for x
x = 452,756,293,515.31/770,215.68 - Step 6: Final answer
x = 587,830.53
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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.