Finding the Fourth Proportional to 812,495.98, 1,218,740.99 and 243,874.61
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Solution
The fourth proportional to 812,495.98, 1,218,740.99 and 243,874.61 is: 365,811.02
Step by Step Solution
- Step 1: Write the proportion equation
812,495.98 : 1,218,740.99 = 243,874.61 : x - Step 2: Convert to fraction form
812,495.98/1,218,740.99 = 243,874.61/x - Step 3: Cross multiply
812,495.98x = 1,218,740.99 × 243,874.61 - Step 4: Simplify right side
812,495.98x = 297,219,982,598.32 - Step 5: Solve for x
x = 297,219,982,598.32/812,495.98 - Step 6: Final answer
x = 365,811.02
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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.