Finding the Fourth Proportional to 1,035,928.48, 1,430,392.08 and 810,217.12
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Solution
The fourth proportional to 1,035,928.48, 1,430,392.08 and 810,217.12 is: 1,118,733.75
Step by Step Solution
- Step 1: Write the proportion equation
1,035,928.48 : 1,430,392.08 = 810,217.12 : x - Step 2: Convert to fraction form
1,035,928.48/1,430,392.08 = 810,217.12/x - Step 3: Cross multiply
1,035,928.48x = 1,430,392.08 × 810,217.12 - Step 4: Simplify right side
1,035,928.48x = 1,158,928,151,528.41 - Step 5: Solve for x
x = 1,158,928,151,528.41/1,035,928.48 - Step 6: Final answer
x = 1,118,733.75
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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.