Finding the Fourth Proportional to 868,703.57, 1,198,810.12 and 486,733.08
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Solution
The fourth proportional to 868,703.57, 1,198,810.12 and 486,733.08 is: 671,691.20
Step by Step Solution
- Step 1: Write the proportion equation
868,703.57 : 1,198,810.12 = 486,733.08 : x - Step 2: Convert to fraction form
868,703.57/1,198,810.12 = 486,733.08/x - Step 3: Cross multiply
868,703.57x = 1,198,810.12 × 486,733.08 - Step 4: Simplify right side
868,703.57x = 583,500,545,648.21 - Step 5: Solve for x
x = 583,500,545,648.21/868,703.57 - Step 6: Final answer
x = 671,691.20
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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.