Finding the Fourth Proportional to 1,031,319.81, 1,545,397.38 and 431,953.02
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Solution
The fourth proportional to 1,031,319.81, 1,545,397.38 and 431,953.02 is: 647,266.79
Step by Step Solution
- Step 1: Write the proportion equation
1,031,319.81 : 1,545,397.38 = 431,953.02 : x - Step 2: Convert to fraction form
1,031,319.81/1,545,397.38 = 431,953.02/x - Step 3: Cross multiply
1,031,319.81x = 1,545,397.38 × 431,953.02 - Step 4: Simplify right side
1,031,319.81x = 667,539,065,391.09 - Step 5: Solve for x
x = 667,539,065,391.09/1,031,319.81 - Step 6: Final answer
x = 647,266.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.