Finding the Fourth Proportional to 3,840,679.18, 5,762,567.90 and 1,709,305.53
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Solution
The fourth proportional to 3,840,679.18, 5,762,567.90 and 1,709,305.53 is: 2,564,647.74
Step by Step Solution
- Step 1: Write the proportion equation
3,840,679.18 : 5,762,567.90 = 1,709,305.53 : x - Step 2: Convert to fraction form
3,840,679.18/5,762,567.90 = 1,709,305.53/x - Step 3: Cross multiply
3,840,679.18x = 5,762,567.90 × 1,709,305.53 - Step 4: Simplify right side
3,840,679.18x = 9,849,989,178,470.49 - Step 5: Solve for x
x = 9,849,989,178,470.49/3,840,679.18 - Step 6: Final answer
x = 2,564,647.74
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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.