Finding the Fourth Proportional to 917,502.11, 1,376,253.16 and 286,469.99
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Solution
The fourth proportional to 917,502.11, 1,376,253.16 and 286,469.99 is: 429,704.98
Step by Step Solution
- Step 1: Write the proportion equation
917,502.11 : 1,376,253.16 = 286,469.99 : x - Step 2: Convert to fraction form
917,502.11/1,376,253.16 = 286,469.99/x - Step 3: Cross multiply
917,502.11x = 1,376,253.16 × 286,469.99 - Step 4: Simplify right side
917,502.11x = 394,255,221,385.23 - Step 5: Solve for x
x = 394,255,221,385.23/917,502.11 - Step 6: Final answer
x = 429,704.98
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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.