Finding the Fourth Proportional to 759,854.24, 1,139,782.70 and 310,574.72
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Solution
The fourth proportional to 759,854.24, 1,139,782.70 and 310,574.72 is: 465,862.63
Step by Step Solution
- Step 1: Write the proportion equation
759,854.24 : 1,139,782.70 = 310,574.72 : x - Step 2: Convert to fraction form
759,854.24/1,139,782.70 = 310,574.72/x - Step 3: Cross multiply
759,854.24x = 1,139,782.70 × 310,574.72 - Step 4: Simplify right side
759,854.24x = 353,987,692,913.34 - Step 5: Solve for x
x = 353,987,692,913.34/759,854.24 - Step 6: Final answer
x = 465,862.63
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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.