Finding the Fourth Proportional to 2,178,937.74, 3,268,931.50 and 683,029.74
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Solution
The fourth proportional to 2,178,937.74, 3,268,931.50 and 683,029.74 is: 1,024,709.15
Step by Step Solution
- Step 1: Write the proportion equation
2,178,937.74 : 3,268,931.50 = 683,029.74 : x - Step 2: Convert to fraction form
2,178,937.74/3,268,931.50 = 683,029.74/x - Step 3: Cross multiply
2,178,937.74x = 3,268,931.50 × 683,029.74 - Step 4: Simplify right side
2,178,937.74x = 2,232,777,432,522.81 - Step 5: Solve for x
x = 2,232,777,432,522.81/2,178,937.74 - Step 6: Final answer
x = 1,024,709.15
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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.