Finding the Fourth Proportional to 747,756.62, 1,031,865.10 and 408,159.26
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Solution
The fourth proportional to 747,756.62, 1,031,865.10 and 408,159.26 is: 563,238.47
Step by Step Solution
- Step 1: Write the proportion equation
747,756.62 : 1,031,865.10 = 408,159.26 : x - Step 2: Convert to fraction form
747,756.62/1,031,865.10 = 408,159.26/x - Step 3: Cross multiply
747,756.62x = 1,031,865.10 × 408,159.26 - Step 4: Simplify right side
747,756.62x = 421,165,289,456.10 - Step 5: Solve for x
x = 421,165,289,456.10/747,756.62 - Step 6: Final answer
x = 563,238.47
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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.