Finding the Fourth Proportional to 645,250.29, 890,439.99 and 358,767.87
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Solution
The fourth proportional to 645,250.29, 890,439.99 and 358,767.87 is: 495,096.65
Step by Step Solution
- Step 1: Write the proportion equation
645,250.29 : 890,439.99 = 358,767.87 : x - Step 2: Convert to fraction form
645,250.29/890,439.99 = 358,767.87/x - Step 3: Cross multiply
645,250.29x = 890,439.99 × 358,767.87 - Step 4: Simplify right side
645,250.29x = 319,461,258,575.12 - Step 5: Solve for x
x = 319,461,258,575.12/645,250.29 - Step 6: Final answer
x = 495,096.65
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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.