Finding the Fourth Proportional to 578,089.19, 866,918.12 and 198,902.67
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Solution
The fourth proportional to 578,089.19, 866,918.12 and 198,902.67 is: 298,279.80
Step by Step Solution
- Step 1: Write the proportion equation
578,089.19 : 866,918.12 = 198,902.67 : x - Step 2: Convert to fraction form
578,089.19/866,918.12 = 198,902.67/x - Step 3: Cross multiply
578,089.19x = 866,918.12 × 198,902.67 - Step 4: Simplify right side
578,089.19x = 172,432,327,744.87 - Step 5: Solve for x
x = 172,432,327,744.87/578,089.19 - Step 6: Final answer
x = 298,279.80
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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.