Finding the Fourth Proportional to 756,421.92, 1,043,860.14 and 416,890.08
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Solution
The fourth proportional to 756,421.92, 1,043,860.14 and 416,890.08 is: 575,307.15
Step by Step Solution
- Step 1: Write the proportion equation
756,421.92 : 1,043,860.14 = 416,890.08 : x - Step 2: Convert to fraction form
756,421.92/1,043,860.14 = 416,890.08/x - Step 3: Cross multiply
756,421.92x = 1,043,860.14 × 416,890.08 - Step 4: Simplify right side
756,421.92x = 435,174,937,273.41 - Step 5: Solve for x
x = 435,174,937,273.41/756,421.92 - Step 6: Final answer
x = 575,307.15
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1.5x scale
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.