Finding the Fourth Proportional to 572,919.24, 790,614.36 and 318,271.05
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Solution
The fourth proportional to 572,919.24, 790,614.36 and 318,271.05 is: 439,206.17
Step by Step Solution
- Step 1: Write the proportion equation
572,919.24 : 790,614.36 = 318,271.05 : x - Step 2: Convert to fraction form
572,919.24/790,614.36 = 318,271.05/x - Step 3: Cross multiply
572,919.24x = 790,614.36 × 318,271.05 - Step 4: Simplify right side
572,919.24x = 251,629,662,502.28 - Step 5: Solve for x
x = 251,629,662,502.28/572,919.24 - Step 6: Final answer
x = 439,206.17
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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.