Finding the Fourth Proportional to 3,915,421.76, 5,873,121.12 and 1,075,536.80
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Solution
The fourth proportional to 3,915,421.76, 5,873,121.12 and 1,075,536.80 is: 1,613,302.04
Step by Step Solution
- Step 1: Write the proportion equation
3,915,421.76 : 5,873,121.12 = 1,075,536.80 : x - Step 2: Convert to fraction form
3,915,421.76/5,873,121.12 = 1,075,536.80/x - Step 3: Cross multiply
3,915,421.76x = 5,873,121.12 × 1,075,536.80 - Step 4: Simplify right side
3,915,421.76x = 6,316,757,895,417.22 - Step 5: Solve for x
x = 6,316,757,895,417.22/3,915,421.76 - Step 6: Final answer
x = 1,613,302.04
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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.