Finding the Fourth Proportional to 747,668.80, 1,031,769.68 and 425,371.96
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Solution
The fourth proportional to 747,668.80, 1,031,769.68 and 425,371.96 is: 587,005.76
Step by Step Solution
- Step 1: Write the proportion equation
747,668.80 : 1,031,769.68 = 425,371.96 : x - Step 2: Convert to fraction form
747,668.80/1,031,769.68 = 425,371.96/x - Step 3: Cross multiply
747,668.80x = 1,031,769.68 × 425,371.96 - Step 4: Simplify right side
747,668.80x = 438,885,891,050.17 - Step 5: Solve for x
x = 438,885,891,050.17/747,668.80 - Step 6: Final answer
x = 587,005.76
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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.