Finding the Fourth Proportional to 1,129,167.11, 1,558,252.11 and 612,920.67
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Solution
The fourth proportional to 1,129,167.11, 1,558,252.11 and 612,920.67 is: 845,831.34
Step by Step Solution
- Step 1: Write the proportion equation
1,129,167.11 : 1,558,252.11 = 612,920.67 : x - Step 2: Convert to fraction form
1,129,167.11/1,558,252.11 = 612,920.67/x - Step 3: Cross multiply
1,129,167.11x = 1,558,252.11 × 612,920.67 - Step 4: Simplify right side
1,129,167.11x = 955,084,923,219.17 - Step 5: Solve for x
x = 955,084,923,219.17/1,129,167.11 - Step 6: Final answer
x = 845,831.34
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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.