Finding the Fourth Proportional to 963,190.21, 1,329,199.10 and 555,290.07
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Solution
The fourth proportional to 963,190.21, 1,329,199.10 and 555,290.07 is: 766,298.34
Step by Step Solution
- Step 1: Write the proportion equation
963,190.21 : 1,329,199.10 = 555,290.07 : x - Step 2: Convert to fraction form
963,190.21/1,329,199.10 = 555,290.07/x - Step 3: Cross multiply
963,190.21x = 1,329,199.10 × 555,290.07 - Step 4: Simplify right side
963,190.21x = 738,091,061,282.94 - Step 5: Solve for x
x = 738,091,061,282.94/963,190.21 - Step 6: Final answer
x = 766,298.34
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.