Finding the Fourth Proportional to 756,477.70, 1,043,905.53 and 416,925.70
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Solution
The fourth proportional to 756,477.70, 1,043,905.53 and 416,925.70 is: 575,338.89
Step by Step Solution
- Step 1: Write the proportion equation
756,477.70 : 1,043,905.53 = 416,925.70 : x - Step 2: Convert to fraction form
756,477.70/1,043,905.53 = 416,925.70/x - Step 3: Cross multiply
756,477.70x = 1,043,905.53 × 416,925.70 - Step 4: Simplify right side
756,477.70x = 435,231,043,829.12 - Step 5: Solve for x
x = 435,231,043,829.12/756,477.70 - Step 6: Final answer
x = 575,338.89
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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.