Finding the Fourth Proportional to 899,143.24, 1,240,903.44 and 491,307.08
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Solution
The fourth proportional to 899,143.24, 1,240,903.44 and 491,307.08 is: 678,050.64
Step by Step Solution
- Step 1: Write the proportion equation
899,143.24 : 1,240,903.44 = 491,307.08 : x - Step 2: Convert to fraction form
899,143.24/1,240,903.44 = 491,307.08/x - Step 3: Cross multiply
899,143.24x = 1,240,903.44 × 491,307.08 - Step 4: Simplify right side
899,143.24x = 609,664,645,668.36 - Step 5: Solve for x
x = 609,664,645,668.36/899,143.24 - Step 6: Final answer
x = 678,050.64
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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.