Finding the Fourth Proportional to 645,313.14, 890,495.56 and 358,827.08
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Solution
The fourth proportional to 645,313.14, 890,495.56 and 358,827.08 is: 495,161.02
Step by Step Solution
- Step 1: Write the proportion equation
645,313.14 : 890,495.56 = 358,827.08 : x - Step 2: Convert to fraction form
645,313.14/890,495.56 = 358,827.08/x - Step 3: Cross multiply
645,313.14x = 890,495.56 × 358,827.08 - Step 4: Simplify right side
645,313.14x = 319,533,915,525.42 - Step 5: Solve for x
x = 319,533,915,525.42/645,313.14 - Step 6: Final answer
x = 495,161.02
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1.5x scale
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.