Finding the Fourth Proportional to 665,423.63, 918,303.02 and 407,295.44
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Solution
The fourth proportional to 665,423.63, 918,303.02 and 407,295.44 is: 562,078.98
Step by Step Solution
- Step 1: Write the proportion equation
665,423.63 : 918,303.02 = 407,295.44 : x - Step 2: Convert to fraction form
665,423.63/918,303.02 = 407,295.44/x - Step 3: Cross multiply
665,423.63x = 918,303.02 × 407,295.44 - Step 4: Simplify right side
665,423.63x = 374,020,632,584.23 - Step 5: Solve for x
x = 374,020,632,584.23/665,423.63 - Step 6: Final answer
x = 562,078.98
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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.