Finding the Fourth Proportional to 716,580.81, 988,880.40 and 430,102.17
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Solution
The fourth proportional to 716,580.81, 988,880.40 and 430,102.17 is: 593,540.32
Step by Step Solution
- Step 1: Write the proportion equation
716,580.81 : 988,880.40 = 430,102.17 : x - Step 2: Convert to fraction form
716,580.81/988,880.40 = 430,102.17/x - Step 3: Cross multiply
716,580.81x = 988,880.40 × 430,102.17 - Step 4: Simplify right side
716,580.81x = 425,319,605,910.47 - Step 5: Solve for x
x = 425,319,605,910.47/716,580.81 - Step 6: Final answer
x = 593,540.32
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1.5x scale
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.