Finding the Fourth Proportional to 499,517.70, 749,276.55 and 286,285.20
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Solution
The fourth proportional to 499,517.70, 749,276.55 and 286,285.20 is: 429,427.80
Step by Step Solution
- Step 1: Write the proportion equation
499,517.70 : 749,276.55 = 286,285.20 : x - Step 2: Convert to fraction form
499,517.70/749,276.55 = 286,285.20/x - Step 3: Cross multiply
499,517.70x = 749,276.55 × 286,285.20 - Step 4: Simplify right side
499,517.70x = 214,506,786,972.06 - Step 5: Solve for x
x = 214,506,786,972.06/499,517.70 - Step 6: Final answer
x = 429,427.80
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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.