Finding the Fourth Proportional to 3,131,966.80, 4,697,950.20 and 1,537,643.80
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Solution
The fourth proportional to 3,131,966.80, 4,697,950.20 and 1,537,643.80 is: 2,306,465.70
Step by Step Solution
- Step 1: Write the proportion equation
3,131,966.80 : 4,697,950.20 = 1,537,643.80 : x - Step 2: Convert to fraction form
3,131,966.80/4,697,950.20 = 1,537,643.80/x - Step 3: Cross multiply
3,131,966.80x = 4,697,950.20 × 1,537,643.80 - Step 4: Simplify right side
3,131,966.80x = 7,223,773,997,738.76 - Step 5: Solve for x
x = 7,223,773,997,738.76/3,131,966.80 - Step 6: Final answer
x = 2,306,465.70
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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.