Finding the Fourth Proportional to 925,430.40, 1,277,102.70 and 538,265.79
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Solution
The fourth proportional to 925,430.40, 1,277,102.70 and 538,265.79 is: 742,811.88
Step by Step Solution
- Step 1: Write the proportion equation
925,430.40 : 1,277,102.70 = 538,265.79 : x - Step 2: Convert to fraction form
925,430.40/1,277,102.70 = 538,265.79/x - Step 3: Cross multiply
925,430.40x = 1,277,102.70 × 538,265.79 - Step 4: Simplify right side
925,430.40x = 687,420,693,726.63 - Step 5: Solve for x
x = 687,420,693,726.63/925,430.40 - Step 6: Final answer
x = 742,811.88
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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.