Finding the Fourth Proportional to 826,277.80, 1,239,416.70 and 542,842.60
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Solution
The fourth proportional to 826,277.80, 1,239,416.70 and 542,842.60 is: 814,263.90
Step by Step Solution
- Step 1: Write the proportion equation
826,277.80 : 1,239,416.70 = 542,842.60 : x - Step 2: Convert to fraction form
826,277.80/1,239,416.70 = 542,842.60/x - Step 3: Cross multiply
826,277.80x = 1,239,416.70 × 542,842.60 - Step 4: Simplify right side
826,277.80x = 672,808,183,911.42 - Step 5: Solve for x
x = 672,808,183,911.42/826,277.80 - Step 6: Final answer
x = 814,263.90
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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.