Finding the Fourth Proportional to 454,827.70, 682,803.15 and 286,347.70
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Solution
The fourth proportional to 454,827.70, 682,803.15 and 286,347.70 is: 429,875.12
Step by Step Solution
- Step 1: Write the proportion equation
454,827.70 : 682,803.15 = 286,347.70 : x - Step 2: Convert to fraction form
454,827.70/682,803.15 = 286,347.70/x - Step 3: Cross multiply
454,827.70x = 682,803.15 × 286,347.70 - Step 4: Simplify right side
454,827.70x = 195,519,111,555.26 - Step 5: Solve for x
x = 195,519,111,555.26/454,827.70 - Step 6: Final answer
x = 429,875.12
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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.