Finding the Fourth Proportional to 645,483.24, 890,698.68 and 358,957.08
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Solution
The fourth proportional to 645,483.24, 890,698.68 and 358,957.08 is: 495,322.85
Step by Step Solution
- Step 1: Write the proportion equation
645,483.24 : 890,698.68 = 358,957.08 : x - Step 2: Convert to fraction form
645,483.24/890,698.68 = 358,957.08/x - Step 3: Cross multiply
645,483.24x = 890,698.68 × 358,957.08 - Step 4: Simplify right side
645,483.24x = 319,722,597,332.65 - Step 5: Solve for x
x = 319,722,597,332.65/645,483.24 - Step 6: Final answer
x = 495,322.85
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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.