Finding the Fourth Proportional to 458,880.10, 688,320.15 and 299,447.80
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Solution
The fourth proportional to 458,880.10, 688,320.15 and 299,447.80 is: 449,171.70
Step by Step Solution
- Step 1: Write the proportion equation
458,880.10 : 688,320.15 = 299,447.80 : x - Step 2: Convert to fraction form
458,880.10/688,320.15 = 299,447.80/x - Step 3: Cross multiply
458,880.10x = 688,320.15 × 299,447.80 - Step 4: Simplify right side
458,880.10x = 206,115,954,613.17 - Step 5: Solve for x
x = 206,115,954,613.17/458,880.10 - Step 6: Final answer
x = 449,171.70
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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.