Finding the Fourth Proportional to 2,145,332.16, 2,960,577.12 and 1,178,482.08
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Solution
The fourth proportional to 2,145,332.16, 2,960,577.12 and 1,178,482.08 is: 1,626,315.56
Step by Step Solution
- Step 1: Write the proportion equation
2,145,332.16 : 2,960,577.12 = 1,178,482.08 : x - Step 2: Convert to fraction form
2,145,332.16/2,960,577.12 = 1,178,482.08/x - Step 3: Cross multiply
2,145,332.16x = 2,960,577.12 × 1,178,482.08 - Step 4: Simplify right side
2,145,332.16x = 3,488,987,082,378.01 - Step 5: Solve for x
x = 3,488,987,082,378.01/2,145,332.16 - Step 6: Final answer
x = 1,626,315.56
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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.