Finding the Fourth Proportional to 1,248,923.23, 1,723,555.79 and 765,394.94
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Solution
The fourth proportional to 1,248,923.23, 1,723,555.79 and 765,394.94 is: 1,056,270.60
Step by Step Solution
- Step 1: Write the proportion equation
1,248,923.23 : 1,723,555.79 = 765,394.94 : x - Step 2: Convert to fraction form
1,248,923.23/1,723,555.79 = 765,394.94/x - Step 3: Cross multiply
1,248,923.23x = 1,723,555.79 × 765,394.94 - Step 4: Simplify right side
1,248,923.23x = 1,319,200,885,023.55 - Step 5: Solve for x
x = 1,319,200,885,023.55/1,248,923.23 - Step 6: Final answer
x = 1,056,270.60
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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.