Finding the Fourth Proportional to 868,139.08, 1,198,004.10 and 480,938.70
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Solution
The fourth proportional to 868,139.08, 1,198,004.10 and 480,938.70 is: 663,679.99
Step by Step Solution
- Step 1: Write the proportion equation
868,139.08 : 1,198,004.10 = 480,938.70 : x - Step 2: Convert to fraction form
868,139.08/1,198,004.10 = 480,938.70/x - Step 3: Cross multiply
868,139.08x = 1,198,004.10 × 480,938.70 - Step 4: Simplify right side
868,139.08x = 576,166,534,448.67 - Step 5: Solve for x
x = 576,166,534,448.67/868,139.08 - Step 6: Final answer
x = 663,679.99
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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.