Finding the Fourth Proportional to 429,518.42, 643,533.42 and 260,684.99
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Solution
The fourth proportional to 429,518.42, 643,533.42 and 260,684.99 is: 390,575.80
Step by Step Solution
- Step 1: Write the proportion equation
429,518.42 : 643,533.42 = 260,684.99 : x - Step 2: Convert to fraction form
429,518.42/643,533.42 = 260,684.99/x - Step 3: Cross multiply
429,518.42x = 643,533.42 × 260,684.99 - Step 4: Simplify right side
429,518.42x = 167,759,499,939.70 - Step 5: Solve for x
x = 167,759,499,939.70/429,518.42 - Step 6: Final answer
x = 390,575.80
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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.