Finding the Fourth Proportional to 487,698.80, 730,122.60 and 347,730.80
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Solution
The fourth proportional to 487,698.80, 730,122.60 and 347,730.80 is: 520,579.74
Step by Step Solution
- Step 1: Write the proportion equation
487,698.80 : 730,122.60 = 347,730.80 : x - Step 2: Convert to fraction form
487,698.80/730,122.60 = 347,730.80/x - Step 3: Cross multiply
487,698.80x = 730,122.60 × 347,730.80 - Step 4: Simplify right side
487,698.80x = 253,886,115,796.08 - Step 5: Solve for x
x = 253,886,115,796.08/487,698.80 - Step 6: Final answer
x = 520,579.74
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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.