Finding the Fourth Proportional to 561,494.58, 775,002.07 and 319,920.99
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Solution
The fourth proportional to 561,494.58, 775,002.07 and 319,920.99 is: 441,570.48
Step by Step Solution
- Step 1: Write the proportion equation
561,494.58 : 775,002.07 = 319,920.99 : x - Step 2: Convert to fraction form
561,494.58/775,002.07 = 319,920.99/x - Step 3: Cross multiply
561,494.58x = 775,002.07 × 319,920.99 - Step 4: Simplify right side
561,494.58x = 247,939,429,486.45 - Step 5: Solve for x
x = 247,939,429,486.45/561,494.58 - Step 6: Final answer
x = 441,570.48
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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.