Finding the Fourth Proportional to 1,430,927.70, 1,974,249.36 and 857,758.74
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Solution
The fourth proportional to 1,430,927.70, 1,974,249.36 and 857,758.74 is: 1,183,448.78
Step by Step Solution
- Step 1: Write the proportion equation
1,430,927.70 : 1,974,249.36 = 857,758.74 : x - Step 2: Convert to fraction form
1,430,927.70/1,974,249.36 = 857,758.74/x - Step 3: Cross multiply
1,430,927.70x = 1,974,249.36 × 857,758.74 - Step 4: Simplify right side
1,430,927.70x = 1,693,429,643,479.41 - Step 5: Solve for x
x = 1,693,429,643,479.41/1,430,927.70 - Step 6: Final answer
x = 1,183,448.78
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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.