Finding the Fourth Proportional to 845,535.42, 1,267,501.14 and 312,694.74
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Solution
The fourth proportional to 845,535.42, 1,267,501.14 and 312,694.74 is: 468,745.52
Step by Step Solution
- Step 1: Write the proportion equation
845,535.42 : 1,267,501.14 = 312,694.74 : x - Step 2: Convert to fraction form
845,535.42/1,267,501.14 = 312,694.74/x - Step 3: Cross multiply
845,535.42x = 1,267,501.14 × 312,694.74 - Step 4: Simplify right side
845,535.42x = 396,340,939,422.00 - Step 5: Solve for x
x = 396,340,939,422.00/845,535.42 - Step 6: Final answer
x = 468,745.52
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1.5x scale
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.