Finding the Fourth Proportional to 770,484.75, 1,063,248.49 and 426,311.70
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Solution
The fourth proportional to 770,484.75, 1,063,248.49 and 426,311.70 is: 588,298.82
Step by Step Solution
- Step 1: Write the proportion equation
770,484.75 : 1,063,248.49 = 426,311.70 : x - Step 2: Convert to fraction form
770,484.75/1,063,248.49 = 426,311.70/x - Step 3: Cross multiply
770,484.75x = 1,063,248.49 × 426,311.70 - Step 4: Simplify right side
770,484.75x = 453,275,271,294.33 - Step 5: Solve for x
x = 453,275,271,294.33/770,484.75 - Step 6: Final answer
x = 588,298.82
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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.