Finding the Fourth Proportional to 1,277,278.74, 1,915,963.37 and 317,739.34
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Solution
The fourth proportional to 1,277,278.74, 1,915,963.37 and 317,739.34 is: 476,620.27
Step by Step Solution
- Step 1: Write the proportion equation
1,277,278.74 : 1,915,963.37 = 317,739.34 : x - Step 2: Convert to fraction form
1,277,278.74/1,915,963.37 = 317,739.34/x - Step 3: Cross multiply
1,277,278.74x = 1,915,963.37 × 317,739.34 - Step 4: Simplify right side
1,277,278.74x = 608,776,938,645.76 - Step 5: Solve for x
x = 608,776,938,645.76/1,277,278.74 - Step 6: Final answer
x = 476,620.27
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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.