Finding the Fourth Proportional to 879,664.60, 1,319,237.70 and 347,008.60
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Solution
The fourth proportional to 879,664.60, 1,319,237.70 and 347,008.60 is: 520,410.65
Step by Step Solution
- Step 1: Write the proportion equation
879,664.60 : 1,319,237.70 = 347,008.60 : x - Step 2: Convert to fraction form
879,664.60/1,319,237.70 = 347,008.60/x - Step 3: Cross multiply
879,664.60x = 1,319,237.70 × 347,008.60 - Step 4: Simplify right side
879,664.60x = 457,786,827,344.22 - Step 5: Solve for x
x = 457,786,827,344.22/879,664.60 - Step 6: Final answer
x = 520,410.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.