Finding the Fourth Proportional to 687,653.20, 1,031,140.68 and 282,771.46
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Solution
The fourth proportional to 687,653.20, 1,031,140.68 and 282,771.46 is: 424,017.74
Step by Step Solution
- Step 1: Write the proportion equation
687,653.20 : 1,031,140.68 = 282,771.46 : x - Step 2: Convert to fraction form
687,653.20/1,031,140.68 = 282,771.46/x - Step 3: Cross multiply
687,653.20x = 1,031,140.68 × 282,771.46 - Step 4: Simplify right side
687,653.20x = 291,577,155,548.99 - Step 5: Solve for x
x = 291,577,155,548.99/687,653.20 - Step 6: Final answer
x = 424,017.74
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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.