Finding the Fourth Proportional to 569,315.99, 785,642.39 and 311,181.35
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Solution
The fourth proportional to 569,315.99, 785,642.39 and 311,181.35 is: 429,422.78
Step by Step Solution
- Step 1: Write the proportion equation
569,315.99 : 785,642.39 = 311,181.35 : x - Step 2: Convert to fraction form
569,315.99/785,642.39 = 311,181.35/x - Step 3: Cross multiply
569,315.99x = 785,642.39 × 311,181.35 - Step 4: Simplify right side
569,315.99x = 244,477,255,220.24 - Step 5: Solve for x
x = 244,477,255,220.24/569,315.99 - Step 6: Final answer
x = 429,422.78
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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.