Finding the Fourth Proportional to 873,207.70, 1,309,811.55 and 768,231.70
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Solution
The fourth proportional to 873,207.70, 1,309,811.55 and 768,231.70 is: 1,152,347.55
Step by Step Solution
- Step 1: Write the proportion equation
873,207.70 : 1,309,811.55 = 768,231.70 : x - Step 2: Convert to fraction form
873,207.70/1,309,811.55 = 768,231.70/x - Step 3: Cross multiply
873,207.70x = 1,309,811.55 × 768,231.70 - Step 4: Simplify right side
873,207.70x = 1,006,238,753,736.14 - Step 5: Solve for x
x = 1,006,238,753,736.14/873,207.70 - Step 6: Final answer
x = 1,152,347.55
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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.