Finding the Fourth Proportional to 2,574,378.12, 3,552,666.30 and 1,428,565.08
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Solution
The fourth proportional to 2,574,378.12, 3,552,666.30 and 1,428,565.08 is: 1,971,433.40
Step by Step Solution
- Step 1: Write the proportion equation
2,574,378.12 : 3,552,666.30 = 1,428,565.08 : x - Step 2: Convert to fraction form
2,574,378.12/3,552,666.30 = 1,428,565.08/x - Step 3: Cross multiply
2,574,378.12x = 3,552,666.30 × 1,428,565.08 - Step 4: Simplify right side
2,574,378.12x = 5,075,215,017,072.80 - Step 5: Solve for x
x = 5,075,215,017,072.80/2,574,378.12 - Step 6: Final answer
x = 1,971,433.40
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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.