Finding the Fourth Proportional to 1,660,862.80, 2,491,294.20 and 538,931.80
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Solution
The fourth proportional to 1,660,862.80, 2,491,294.20 and 538,931.80 is: 808,397.70
Step by Step Solution
- Step 1: Write the proportion equation
1,660,862.80 : 2,491,294.20 = 538,931.80 : x - Step 2: Convert to fraction form
1,660,862.80/2,491,294.20 = 538,931.80/x - Step 3: Cross multiply
1,660,862.80x = 2,491,294.20 × 538,931.80 - Step 4: Simplify right side
1,660,862.80x = 1,342,637,667,535.56 - Step 5: Solve for x
x = 1,342,637,667,535.56/1,660,862.80 - Step 6: Final answer
x = 808,397.70
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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.