Finding the Fourth Proportional to 320,477.24, 480,679.14 and 83,842.76
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Solution
The fourth proportional to 320,477.24, 480,679.14 and 83,842.76 is: 125,754.53
Step by Step Solution
- Step 1: Write the proportion equation
320,477.24 : 480,679.14 = 83,842.76 : x - Step 2: Convert to fraction form
320,477.24/480,679.14 = 83,842.76/x - Step 3: Cross multiply
320,477.24x = 480,679.14 × 83,842.76 - Step 4: Simplify right side
320,477.24x = 40,301,465,772.03 - Step 5: Solve for x
x = 40,301,465,772.03/320,477.24 - Step 6: Final answer
x = 125,754.53
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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.