Finding the Fourth Proportional to 422,660.05, 583,330.68 and 261,566.98
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Solution
The fourth proportional to 422,660.05, 583,330.68 and 261,566.98 is: 360,999.45
Step by Step Solution
- Step 1: Write the proportion equation
422,660.05 : 583,330.68 = 261,566.98 : x - Step 2: Convert to fraction form
422,660.05/583,330.68 = 261,566.98/x - Step 3: Cross multiply
422,660.05x = 583,330.68 × 261,566.98 - Step 4: Simplify right side
422,660.05x = 152,580,044,308.95 - Step 5: Solve for x
x = 152,580,044,308.95/422,660.05 - Step 6: Final answer
x = 360,999.45
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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.