Finding the Fourth Proportional to 669,340.68, 1,001,501.46 and 398,478.06
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Solution
The fourth proportional to 669,340.68, 1,001,501.46 and 398,478.06 is: 596,223.08
Step by Step Solution
- Step 1: Write the proportion equation
669,340.68 : 1,001,501.46 = 398,478.06 : x - Step 2: Convert to fraction form
669,340.68/1,001,501.46 = 398,478.06/x - Step 3: Cross multiply
669,340.68x = 1,001,501.46 × 398,478.06 - Step 4: Simplify right side
669,340.68x = 399,076,358,867.97 - Step 5: Solve for x
x = 399,076,358,867.97/669,340.68 - Step 6: Final answer
x = 596,223.08
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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.