Finding the Fourth Proportional to 747,690.42, 1,031,830.47 and 408,161.10
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Solution
The fourth proportional to 747,690.42, 1,031,830.47 and 408,161.10 is: 563,271.98
Step by Step Solution
- Step 1: Write the proportion equation
747,690.42 : 1,031,830.47 = 408,161.10 : x - Step 2: Convert to fraction form
747,690.42/1,031,830.47 = 408,161.10/x - Step 3: Cross multiply
747,690.42x = 1,031,830.47 × 408,161.10 - Step 4: Simplify right side
747,690.42x = 421,153,059,648.72 - Step 5: Solve for x
x = 421,153,059,648.72/747,690.42 - Step 6: Final answer
x = 563,271.98
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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.