Finding the Fourth Proportional to 720,281.09, 1,080,421.67 and 246,970.55
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Solution
The fourth proportional to 720,281.09, 1,080,421.67 and 246,970.55 is: 370,455.84
Step by Step Solution
- Step 1: Write the proportion equation
720,281.09 : 1,080,421.67 = 246,970.55 : x - Step 2: Convert to fraction form
720,281.09/1,080,421.67 = 246,970.55/x - Step 3: Cross multiply
720,281.09x = 1,080,421.67 × 246,970.55 - Step 4: Simplify right side
720,281.09x = 266,832,337,390.30 - Step 5: Solve for x
x = 266,832,337,390.30/720,281.09 - Step 6: Final answer
x = 370,455.84
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1.5x scale
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.