Finding the Fourth Proportional to 720,750.40, 1,081,125.60 and 346,811.20
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Solution
The fourth proportional to 720,750.40, 1,081,125.60 and 346,811.20 is: 520,216.80
Step by Step Solution
- Step 1: Write the proportion equation
720,750.40 : 1,081,125.60 = 346,811.20 : x - Step 2: Convert to fraction form
720,750.40/1,081,125.60 = 346,811.20/x - Step 3: Cross multiply
720,750.40x = 1,081,125.60 × 346,811.20 - Step 4: Simplify right side
720,750.40x = 374,946,466,686.72 - Step 5: Solve for x
x = 374,946,466,686.72/720,750.40 - Step 6: Final answer
x = 520,216.80
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1.5x scale
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.