Finding the Fourth Proportional to 555,420.19, 766,479.67 and 300,771.31
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Solution
The fourth proportional to 555,420.19, 766,479.67 and 300,771.31 is: 415,064.30
Step by Step Solution
- Step 1: Write the proportion equation
555,420.19 : 766,479.67 = 300,771.31 : x - Step 2: Convert to fraction form
555,420.19/766,479.67 = 300,771.31/x - Step 3: Cross multiply
555,420.19x = 766,479.67 × 300,771.31 - Step 4: Simplify right side
555,420.19x = 230,535,094,434.27 - Step 5: Solve for x
x = 230,535,094,434.27/555,420.19 - Step 6: Final answer
x = 415,064.30
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1.5x scale
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.