Finding the Fourth Proportional to 429,809.81, 593,113.37 and 257,641.62
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Solution
The fourth proportional to 429,809.81, 593,113.37 and 257,641.62 is: 355,530.95
Step by Step Solution
- Step 1: Write the proportion equation
429,809.81 : 593,113.37 = 257,641.62 : x - Step 2: Convert to fraction form
429,809.81/593,113.37 = 257,641.62/x - Step 3: Cross multiply
429,809.81x = 593,113.37 × 257,641.62 - Step 4: Simplify right side
429,809.81x = 152,810,688,202.25 - Step 5: Solve for x
x = 152,810,688,202.25/429,809.81 - Step 6: Final answer
x = 355,530.95
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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.