Finding the Fourth Proportional to 579,659.68, 799,854.24 and 321,533.74
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Solution
The fourth proportional to 579,659.68, 799,854.24 and 321,533.74 is: 443,674.34
Step by Step Solution
- Step 1: Write the proportion equation
579,659.68 : 799,854.24 = 321,533.74 : x - Step 2: Convert to fraction form
579,659.68/799,854.24 = 321,533.74/x - Step 3: Cross multiply
579,659.68x = 799,854.24 × 321,533.74 - Step 4: Simplify right side
579,659.68x = 257,180,125,242.06 - Step 5: Solve for x
x = 257,180,125,242.06/579,659.68 - Step 6: Final answer
x = 443,674.34
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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.