Finding the Fourth Proportional to 1,026,455.49, 1,539,945.68 and 427,217.49
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Solution
The fourth proportional to 1,026,455.49, 1,539,945.68 and 427,217.49 is: 640,935.46
Step by Step Solution
- Step 1: Write the proportion equation
1,026,455.49 : 1,539,945.68 = 427,217.49 : x - Step 2: Convert to fraction form
1,026,455.49/1,539,945.68 = 427,217.49/x - Step 3: Cross multiply
1,026,455.49x = 1,539,945.68 × 427,217.49 - Step 4: Simplify right side
1,026,455.49x = 657,891,726,009.86 - Step 5: Solve for x
x = 657,891,726,009.86/1,026,455.49 - Step 6: Final answer
x = 640,935.46
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1.5x scale
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.