Finding the Fourth Proportional to 1,340,828.44, 1,850,381.75 and 817,569.74
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Solution
The fourth proportional to 1,340,828.44, 1,850,381.75 and 817,569.74 is: 1,128,269.72
Step by Step Solution
- Step 1: Write the proportion equation
1,340,828.44 : 1,850,381.75 = 817,569.74 : x - Step 2: Convert to fraction form
1,340,828.44/1,850,381.75 = 817,569.74/x - Step 3: Cross multiply
1,340,828.44x = 1,850,381.75 × 817,569.74 - Step 4: Simplify right side
1,340,828.44x = 1,512,816,126,248.25 - Step 5: Solve for x
x = 1,512,816,126,248.25/1,340,828.44 - Step 6: Final answer
x = 1,128,269.72
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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.