Finding the Fourth Proportional to 379,801.17, 569,701.76 and 99,315.99
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Solution
The fourth proportional to 379,801.17, 569,701.76 and 99,315.99 is: 148,973.99
Step by Step Solution
- Step 1: Write the proportion equation
379,801.17 : 569,701.76 = 99,315.99 : x - Step 2: Convert to fraction form
379,801.17/569,701.76 = 99,315.99/x - Step 3: Cross multiply
379,801.17x = 569,701.76 × 99,315.99 - Step 4: Simplify right side
379,801.17x = 56,580,493,802.56 - Step 5: Solve for x
x = 56,580,493,802.56/379,801.17 - Step 6: Final answer
x = 148,973.99
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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.