Finding the Fourth Proportional to 1,145,471.02, 1,580,698.84 and 686,838.74
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Solution
The fourth proportional to 1,145,471.02, 1,580,698.84 and 686,838.74 is: 947,806.78
Step by Step Solution
- Step 1: Write the proportion equation
1,145,471.02 : 1,580,698.84 = 686,838.74 : x - Step 2: Convert to fraction form
1,145,471.02/1,580,698.84 = 686,838.74/x - Step 3: Cross multiply
1,145,471.02x = 1,580,698.84 × 686,838.74 - Step 4: Simplify right side
1,145,471.02x = 1,085,685,199,585.06 - Step 5: Solve for x
x = 1,085,685,199,585.06/1,145,471.02 - Step 6: Final answer
x = 947,806.78
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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.